Sample records for asme fluids engineering

  1. 1 Copyright 2010 by ASME Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and 8th

    E-print Network

    Bahrami, Majid

    Assistant Professor mbahrami@sfu.ca Mechatronic Systems Engineering, School of Engineering Science, Simon1 Copyright © 2010 by ASME Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer

  2. 1 Copyright 2010 by ASME Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and 8th International

    E-print Network

    Boyer, Edmond

    1 Copyright © 2010 by ASME Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer to combustion where liquid droplets need to be as small as possible. We carried out experiments with air, to cryotechnic rocket engines with LOX/H2. This process is widely used, and has proven reliable

  3. Proceedings of HTFED04 2004 ASME Heat Transfer/ Fluids Engineering Summer Conference

    E-print Network

    McDonough, James M.

    prediction that heat conduction is a diffusion phe- nomenon in which temperature disturbances will propagate, a modified heat flux that accommodates the finite propagation speed of observed thermal waves was proposedProceedings of HTFED04 2004 ASME Heat Transfer/ Fluids Engineering Summer Conference Charlotte

  4. Proceedings of FEDSM'98 1998 ASME Fluids Engineering Division Summer Meeting

    E-print Network

    Hu, Hui

    with convoluted trailing edge is extraordinary fluid mechanic device for efficient mixing of two co-flow streams received attention for using in supersonic ejectors for jet noise reduction at aircraft take off

  5. Proceedings of FEDSM2007 2007 5th ASME-JSME Fluids Engineering Conference

    E-print Network

    Smith, Barton L.

    DATA WITH A LOW POWER BEOWULF CLUSTER Thomas Hauser Mechanical & Aerospace Engineering Utah State system. To decrease the computational time, parallel processing has been implemented using a Beowulf cluster [?]. Beowulf cluster supercomputers are built from commodity parts and provide low cost parallel

  6. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-print Network

    Williams II, Robert L.

    -dof linkages, cams, and gear trains, such as the Ross-yoke Stirling engine mechanism shown in Figure 1 trains. #12;2 Copyright © 2010 by ASME Figure 1. Ross-Yoke Stirling Engine Mechanism www.ent.ohiou.edu/~urieli/stirling/engines1 Copyright © 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical

  7. 1 Copyright 2013 by ASME ASME 2013 International Mechanical Engineering Congress & Exposition

    E-print Network

    Paris-Sud XI, Universitť de

    1 Copyright © 2013 by ASME ASME 2013 International Mechanical Engineering Congress & Exposition the theoretical one that relies on the rank of the observation matrix only, without taking into account essential

  8. Fluids engineering

    SciTech Connect

    Not Available

    1991-01-01

    Fluids engineering has played an important role in many applications, from ancient flood control to the design of high-speed compact turbomachinery. New applications of fluids engineering, such as in high-technology materials processing, biotechnology, and advanced combustion systems, have kept up unwaining interest in the subject. More accurate and sophisticated computational and measurement techniques are also constantly being developed and refined. On a more fundamental level, nonlinear dynamics and chaotic behavior of fluid flow are no longer an intellectual curiosity and fluid engineers are increasingly interested in finding practical applications for these emerging sciences. Applications of fluid technology to new areas, as well as the need to improve the design and to enhance the flexibility and reliability of flow-related machines and devices will continue to spur interest in fluids engineering. The objectives of the present seminar were: to exchange current information on arts, science, and technology of fluids engineering; to promote scientific cooperation between the fluids engineering communities of both nations, and to provide an opportunity for the participants and their colleagues to explore possible joint research programs in topics of high priority and mutual interest to both countries. The Seminar provided an excellent forum for reviewing the current state and future needs of fluids engineering for the two nations. With the Seminar ear-marking the first formal scientific exchange between Korea and the United States in the area of fluids engineering, the scope was deliberately left broad and general.

  9. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Mechanical Engineering Congress & Exposition

    E-print Network

    Bahrami, Majid

    Manipulation With Temperature Gradient Focusing M. Akbari Mechatronic System Engineering School of Engineering Science, Simon Fraser University, Surrey, BC, V3T 0A3, Canada. M. Bahrami Mechatronic System Engineering1 Copyright © 2010 by ASME Proceedings of the ASME 2010 International Mechanical Engineering

  10. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Mechanical Engineering Congress & Exposition

    E-print Network

    Bahrami, Majid

    D Candidate ali_tamayol@sfu.ca M. Bahrami Assistant Professor mbahrami@sfu.ca Mechatronic Systems Engineering1 Copyright © 2010 by ASME Proceedings of the ASME 2010 International Mechanical Engineering, School of Engineering Science, Simon Fraser University, BC, Canada ABSTRACT Water transport through gas

  11. Proceedings of ASME 2009 2009 ASME International Mechanical Engineering Congress and Exposition

    E-print Network

    Van de Ven, James D.

    of the liquid piston includes the fluidyne Stirling engine, also used for water pumping [2-4]. A preliminary1 Proceedings of ASME 2009 2009 ASME International Mechanical Engineering Congress Mechanical Energy and Power Systems Lab Department of Mechanical Engineering Worcester Polytechnic Institute

  12. 1 Copyright 2010 by ASME ASME 2010 International Mechanical Engineering Congress and Exposition

    E-print Network

    Van de Ven, James D.

    processes and a conceptual Liquid Piston Stirling Engine are immediate applications. Proposed is a thin1 Copyright © 2010 by ASME -DRAFT- ASME 2010 International Mechanical Engineering Congress was an inspiration for the BHEX concept. He draws connections between optimal engineering design and #12;2 Copyright

  13. Proceedings of the ASME 2013 Fluids Engineering Division Summer Meeting July 7-11, 2013, Incline Village, Nevada, USA

    E-print Network

    Luo, Haoxiang

    . The flow and the solid body are meshed separately, and as the body deforms, no mesh regeneration is needed and biomedical systems involve fluid≠ structure interaction at the tissue and organ levels. For example

  14. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 International Manufacturing Science and Engineering Conferences

    E-print Network

    Chen, Yong

    1 Copyright © 2012 by ASME Proceedings of the ASME 2012 International Manufacturing Science and Engineering Conferences MSEC2012 June 4-8, 2012, Notre Dame, Indiana, USA MSEC2012-7232 RAPID MANUFACTURING Pan, Chi Zhou, Yong Chen* Daniel J. Epstein Department of Industrial and Systems Engineering

  15. 1 Copyright 2010 by ASME Proceedings of the 3rd Joint US-European Fluids Engineering Summer Meeting and

    E-print Network

    Cubaud, Thomas

    a promising means for manipulating interfaces between "thick" and "thin" fluids and for reducing the hydraulic Brook, New York 11794, USA thomas.cubaud@stonybrook.edu ABSTRACT The manipulation of highly viscous extensional microgeometries permits the manipulation of complex phenomena such as viscous buckling, wetting

  16. 1 Copyright 2008 by ASME Proceedings of the 9th Biennial ASME Conference on Engineering Systems Design and Analysis

    E-print Network

    Nagurka, Mark L.

    challenges often faced in solving mechatronic engineering problems. The design problem is multi mechanical, electrical, and control engineering. The name "mechatronic design" is often ascribed to design1 Copyright © 2008 by ASME Proceedings of the 9th Biennial ASME Conference on Engineering Systems

  17. 1 Copyright 2008 by ASME Proceedings of the ASME 2008 International Design Engineering Technical Conferences & Computers and

    E-print Network

    Florida, University of

    is attached to a rigid silicon frame by a set of aluminum/silicon dioxide bimorph beams. A polysilicon1 Copyright © 2008 by ASME Proceedings of the ASME 2008 International Design Engineering Technical]. The vertical motion of comb drives is limited and they require a careful design and control to avoid jumps

  18. Department of Engineering Design Spring 2012 ASME Jaipur Foot

    E-print Network

    Demirel, Melik C.

    PENNSTATE Department of Engineering Design Spring 2012 ASME Jaipur Foot Overview The purpose prosthetic foot in order to understand more about its characteristics. All previous testing that has been is based out of India and each foot is hand crafted by a lone individual. Thus, the team faced

  19. Proceedings of the ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and 8th International Conference on Nanochannels, Microchannels, and Minichannels

    E-print Network

    Lindken, Ralph

    density of fluid p mass density of particle fluid stress tensor signed distance to particle surface are shown from a lubrication study of non-touching par- ticles at close distance from each other. The numerical results for the drag force acting on the particles agree well with exact solu- tions, except when

  20. Accelerator System Model (ASM) user manual with physics and engineering model documentation. ASM version 1.0

    SciTech Connect

    NONE

    1993-07-01

    The Accelerator System Model (ASM) is a computer program developed to model proton radiofrequency accelerators and to carry out system level trade studies. The ASM FORTRAN subroutines are incorporated into an intuitive graphical user interface which provides for the {open_quotes}construction{close_quotes} of the accelerator in a window on the computer screen. The interface is based on the Shell for Particle Accelerator Related Codes (SPARC) software technology written for the Macintosh operating system in the C programming language. This User Manual describes the operation and use of the ASM application within the SPARC interface. The Appendix provides a detailed description of the physics and engineering models used in ASM. ASM Version 1.0 is joint project of G. H. Gillespie Associates, Inc. and the Accelerator Technology (AT) Division of the Los Alamos National Laboratory. Neither the ASM Version 1.0 software nor this ASM Documentation may be reproduced without the expressed written consent of both the Los Alamos National Laboratory and G. H. Gillespie Associates, Inc.

  1. 1 Copyright 2009 by ASME Proceedings of FEDSM2009

    E-print Network

    Bahrami, Majid

    @sfu.ca Mechatronic Systems Engineering, School of Engineering Science, Simon Fraser University, BC, Canada ABSTRACT1 Copyright © 2009 by ASME Proceedings of FEDSM2009 ASME 2009 Fluids Engineering Division Summer engineering areas including: filtration and separation of particles [5], composite fabrication [6], heat

  2. 1 Copyright 2011 by ASME Proceedings of the ASME 2011 International Manufacturing Science and Engineering Conferences

    E-print Network

    Chen, Yong

    1 Copyright © 2011 by ASME Proceedings of the ASME 2011 International Manufacturing Science OF CONFORMAL ULTRASOUND TRANSDUCER ARRAYS AND HORNS BASED ON MULTI-AXIS CNC ACCUMULATION Yayue Pan, Chi Zhou) 740-1120, Email: yongchen@usc.edu KEYWORDS Additive Manufacturing, Solid Freeform Fabrication

  3. Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Varshney, Amitabh

    DETC2012-71236 USING GPUS FOR REALTIME PREDICTION OF OPTICAL FORCES ON MICROSPHERE ENSEMBLES Sujal Bista Graduate Student Inst. for Advanced Computer Studies Department of Computer Science University K. Gupta Professor, Fellow of ASME Inst. for Systems Research Department of Mechanical Engineering

  4. Proceedings of IDETC/CIE 2008 ASME 2008 International Design Engineering Technical Conferences &

    E-print Network

    Paderborn, Universität

    engineering: mechatronic systems with inherent partial intelligence. Typi- cal system characteristicsProceedings of IDETC/CIE 2008 ASME 2008 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference August 3-6, 2008, New York City, USA DETC2008

  5. Proceedings of IDETC/CIE 2005 2005 ASME International Design Engineering Technical Conferences

    E-print Network

    Reuter, Martin

    ordinary differential equation (ODE) solver was proposed, motivated by its potential for the interval BProceedings of IDETC/CIE 2005 2005 ASME International Design Engineering Technical Conferences & Computers and Information in Engineering Conference Long Beach, CA, USA, September 24-28, 2005 DETC2005

  6. Proceedings of IMECE2007 2007 ASME International Mechanical Engineering Congress and Exposition

    E-print Network

    Regueiro, Richard A.

    silo flows), dry soils (sand, silt, gravel), and lunar and martian regolith (soil found on the surfaceProceedings of IMECE2007 2007 ASME International Mechanical Engineering Congress and Exposition particle mechanics and the discrete element method, whereas the continuum region is modeled using linear

  7. Proceedings of IMECE2007 2007 ASME International Mechanical Engineering Congress and Exposition

    E-print Network

    Sen, Mihir

    Proceedings of IMECE2007 2007 ASME International Mechanical Engineering Congress and Exposition REFRIGERATION SYSTEM USING IONIC LIQUIDS Weihua Cai, Mihir Sen , and Samuel Paolucci Department of Aerospace- mal and chemical stability. We propose its use as an absorbent in an absorption refrigeration cycle

  8. Proceedings of IDETC/CIE 2005 ASME International Design Engineering Technical Conferences &

    E-print Network

    software suite, is a stiff and nonstiff ordinary differential equation initial value problem solver for differential-algebraic equation (DAE) systems, and KINSOL, a Newton-Krylov (GMRES) solver for nonlinearProceedings of IDETC/CIE 2005 ASME International Design Engineering Technical Conferences

  9. 1 Copyright 2013 by ASME Proceedings of the ASME 2013 International Design Engineering Technical Conferences &

    E-print Network

    Wood, Robert

    , Oregon, USA DETC2013-13086 MICROSURGICAL DEVICES BY POP-UP BOOK MEMS Joshua B. Gafford Dept. Engineering.kesner@wyss.harvard.edu Robert J. Wood Charles River Professor of Engineering and Applied Sciences, Harvard University Core

  10. 1 Copyright 2013 by ASME Proceedings of the ASME 2013 International Design Engineering Technical Conference &

    E-print Network

    Krovi, Venkat

    uncertainty) and can be Aliakbar Alamdari Mechanical and Aerospace Engineering, SUNY at Buffalo Buffalo, NY, 14260 aalamdar@buffalo.edu Xiaobo Zhou Mechanical and Aerospace Engineering, SUNY at Buffalo Buffalo, NY, 14260 xzhou9@buffalo.edu Venkat N. Krovi Mechanical and Aerospace Engineering, SUNY at Buffalo Buffalo

  11. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-print Network

    Egyed, Alexander

    Institute for Computer-Aided Methods in Mechanical Engineering Johannes Kepler University Linz, Austria in Mechanical Engineering Johannes Kepler University Linz, Austria klaus.zeman@jku.at ABSTRACT During all phases peter.hehenberger@jku.at Alexander Egyed Institute for Systems Engineering and Automation Johannes

  12. 1 Copyright 2007 by ASME Proceedings of the 2007 ASME International Mechanical Engineering Congress and Exposition

    E-print Network

    RESEARCH AND TEACHING: TWO DESIGN COURSES ORCHESTRATED AROUND A ROTARY DIESEL ENGINE PATENT Dirk Schaefer students at Georgia Tech Savannah were orchestrated around a patent of a rotary diesel engine. The design the patent of a diesel engine. It is demonstrated how the courses were designed in order to address higher

  13. 1 Copyright 2011 by ASME Proceedings of the ASME 2011 International Design Engineering Technical Conferences &

    E-print Network

    Williams II, Robert L.

    , DC, USA DETC2011-48276 7-DOF CABLE-DRIVEN HUMANOID ROBOTIC ARM Jun Ding Mechanical Engineering, Ohio University Athens, Ohio, USA jd249108@ohio.edu Robert L. Williams II Mechanical Engineering, Ohio University-driven robotic arm, implement kinematics and dynamics analysis, present different cable-driven designs

  14. Proceedings of IMECE'04 2004 ASME International Mechanical Engineering Congress

    E-print Network

    Sitti, Metin

    NANOPROBE-BASED POSITIONING Afshin Tafazzoli Department of Mechanical Engineering Nanorobotics Laboratory Engineering and the Robotics Institute, Nanorobotics Laboratory, Carnegie Mellon University, Pittsburgh, PA

  15. 1 Copyright 2007 by ASME Proceedings of the 2007 ASME International Mechanical Engineering Congress and Exposition

    E-print Network

    logic-driven designs. An example of a product developed using an electronic CAD system is shown in Fig. ECAD SYSTEMS DEVELOPMENT ­ OVERVIEW The domain of Electrical Computer-Aided Design and Engineering Technology Circle Savannah, Georgia 31407, USA dirk.schaefer@me.gatech.edu ABSTRACT The domain of Electrical

  16. Proceedings of ASME Internal Combustion Engine Division 2009 Fall Technical Conference September 27-30, 2009, Lucerne, Switzerland

    E-print Network

    Daraio, Chiara

    Proceedings of ASME Internal Combustion Engine Division 2009 Fall Technical Conference ICEF 2009 Internal Combustion Engine Division Fall Technical Conference ICEF2009 September 20-24, 2009, Lucerne AND ANALYSIS OF THE SOOT EMISSIONS FROM A COMMON RAIL DIESEL ENGINE USING TWO FUELS Patrick Kirchen Laboratory

  17. Proceedings of ASME 2012 Internal Combustion Engine Division Spring Technical Conference May 69, 2012, Torino, Piemonte, Italy

    E-print Network

    Stefanopoulou, Anna

    Proceedings of ASME 2012 Internal Combustion Engine Division Spring Technical Conference ICES 2012 and comparisons with data from a single-cylinder engine indicate that, at high CV, the evolution of combustion but the evo- lution of the combustion phasing is governed by the interactions between engine cycles

  18. Mechanical Engineering ME 3720 FLUID MECHANICS

    E-print Network

    Panchagnula, Mahesh

    Mechanical Engineering ME 3720 FLUID MECHANICS Pre-requisite: ME 2330 Co-requisite: ME 3210) to develop an understanding of the physical mechanisms and the mathematical models of fluid mechanics of fluid mechanics problems in engineering practice. The basic principles of fluid mechanics

  19. Proceedings of DETC05 2005 ASME Design Engineering Technical Conferences

    E-print Network

    Papalambros, Panos

    of the driver's workstation in a truck cab includes the selection of locations for the seat, steering wheel, September 24 - September 28 , 2005 DETC2005-84179 ROBUST TRUCK CABIN LAYOUT OPTIMIZATION USING ADVANCED DRIVER VARIANCE MODELS Matthew B. Parkinson Engineering Design The Pennsylvania State University

  20. Proceedings of FEDSM2005 2005 ASME Fluids Engineering Summer Conference

    E-print Network

    Hidrovo, Carlos H.

    friction factors of simulated microchannels of PEMFC. The main flow in the channel is air and liquid water In the past decades, Proton Exchange Membrane Fuel Cells (PEMFC) have been studied as effective portable power-and-off capability. Recently, the relation between performance of PEMFC and the gas routing channel size was studied

  1. Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Butcher, Eric A.

    , commonly known as chatter. Chatter is typically characterized by large amplitude oscilla- tions element anal- ysis (TFEA) [7­10], as well as frequency domain techniques [11, 12]. Numerical simulation c 2009 by ASME #12;A milling process is stable if it is chatter-free, whereas at the onset

  2. Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Dollar, Aaron M.

    mechanisms control only one of either the flexion or extension of the finger (see Figs. 1a and 1c-acting mechanisms control both the flexion and extension motion of the fingers (see Fig 1d). This is achievedHand and the Southampton hand feature clutch mechanisms that engage or disengage the 1 Copyright c 2010 by ASME #12;(a) (b

  3. 1 Copyright 2013 by ASME Proceedings of the ASME 2013 Fluids Engineering Summer Meeting

    E-print Network

    Yang, Jianming

    unimportant, whereas in cavitation the heat flux is relatively unimportant but the pressure field is critical July 7-11, 2013, Incline Village, Nevada, USA FEDSM2013-16479 SHARP INTERFACE CAVITATION MODELING USING A sharp interface cavitation modeling methodology is presented. A simplified Rayleigh-Plesset equation

  4. Yuwen Zhang Fellow ASME

    E-print Network

    Zhang, Yuwen

    Yuwen Zhang Mem. ASME A. Faghri Fellow ASME M. B. Shafii Department of Mechanical Engineering a small temperature drop. Miniature and micro heat pipes have been and are being used in electronic by Collier and Thome 7 . Depending on ori- entation of the tube and the mass flow rate, both the shear stress

  5. Institute of Fluid Mechanics and Engineering Acoustics

    E-print Network

    Berlin,Technische Universitšt

    Institute of Fluid Mechanics and Engineering Acoustics Large Kundt's tubes Click to insert Property measurement Acoustical Property measurement Parameter Principle/Method: Standard absorption coefficient, acoustic impedance Large Kundt's tubes (impedance tubes) Determination of sound

  6. Stirling engine with air working fluid

    DOEpatents

    Corey, John A. (North Troy, NY)

    1985-01-01

    A Stirling engine capable of utilizing air as a working fluid which includes a compact heat exchange module which includes heating tube units, regenerator and cooler positioned about the combustion chamber. This arrangement has the purpose and effect of allowing the construction of an efficient, high-speed, high power-density engine without the use of difficult to seal light gases as working fluids.

  7. Review and Application of ASME NOG-1 and ASME NUM-1-2000

    NASA Technical Reports Server (NTRS)

    Lytle, Bradford P.; Delgado, H. (Technical Monitor)

    2002-01-01

    The intent of the workshop is to review the application of the ASME Nuclear Crane Standards ASME NOG-1 and ASME NUM-1-2000. The ASME Nuclear Crane standards provide a basis for purchasing overhead handling equipment with enhanced safety features, based upon accepted engineering principles, and including performance and environmental parameters specific to nuclear facilities.

  8. Supercritical fluid technologies and tissue engineering scaffolds

    Microsoft Academic Search

    Robin A. Quirk; Richard M. France; Kevin M. Shakesheff; Steven M. Howdle

    2004-01-01

    Supercritical fluid (SCF) processing methods possess advantages over standard processing methods for the production of scaffolds for use in tissue engineering. Advantages include the absence of organic solvents, the ability to incorporate delicate biologicals without loss of activity, and control over the morphology of an internal porous architecture. This review describes SCF processing methods of relevance to tissue engineering and

  9. Spreadsheet Fluid Dynamics in Aerospace Engineering

    Microsoft Academic Search

    Etsuo MORISHITA; Hisao KOYAMA; Takeo OKUNUKI; Hiroyoshi ASANO; Yoshihiro FUJIMAKI; Kazuo NAKAMURA; Shingo TARAO

    Spreadsheets are now widely used in engineering and scientific fields to solve numerical, analytical, and experimental problems. The present authors tried to extend the Spreadsheet Fluid Dynamics, i.e., SFD, to aerospace engineering problems. Spreadsheets enable us to present the analytical solutions in graphical forms easily. The matrix inverse function makes it possible to solve the aerodynamic panel methods and the

  10. 1 Copyright 2011 by ASME Proceedings of the ASME International Design Engineering Technical Conferences & Computers and Information

    E-print Network

    Cagan, Jonathan

    & Decision Sciences Carnegie Mellon University Pittsburgh, PA 15213 tabibnia@andrew.cmu.edu ABSTRACT of Mechanical Engineering Carnegie Mellon University Pittsburgh, PA, 15213 Email: sylcott@cmu.edu Jonathan Cagan Integrated Design Innovation Group Department of Mechanical Engineering Carnegie Mellon University Pittsburgh

  11. Proceedings of ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Kara, Levent Burak

    Email: earisoy@andrew.cmu.edu Levent Burak Kara Department of Mechanical Engineering Carnegie Mellon Arisoy Department of Mechanical Engineering Carnegie Mellon University Pittsburgh, Pennsylvania 15213 discussions and observations with the artists at Carnegie Mellon University's Design Studio, modifica- tions

  12. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 10th International Mechanical Engineering Congress & Exposition

    E-print Network

    Kandlikar, Satish

    with a low normal boiling point, FC-87 has desirable characteristics for an electronics cooling fluid it must be dielectric, stable, non-toxic, non-flammable and have a low boiling point. Different enhanced Congress & Exposition IMECE2012 November 9-15, 2012, Houston, Texas, USA IMECE2012-86186 POOL BOILING OF FC

  13. Proceedings of the ASME 2013 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Giles, C. Lee

    DATA Suppawong Tuarob Computer Science and Engineering The Pennsylvania State University University and Manufacturing Engineering Computer Science and Engineering The Pennsylvania State University University Park, PA 16802 Email: ctucker4@psu.edu ABSTRACT The authors of this work propose a Knowledge Discov- ery

  14. Using Computers in Fluids Engineering Education

    NASA Technical Reports Server (NTRS)

    Benson, Thomas J.

    1998-01-01

    Three approaches for using computers to improve basic fluids engineering education are presented. The use of computational fluid dynamics solutions to fundamental flow problems is discussed. The use of interactive, highly graphical software which operates on either a modern workstation or personal computer is highlighted. And finally, the development of 'textbooks' and teaching aids which are used and distributed on the World Wide Web is described. Arguments for and against this technology as applied to undergraduate education are also discussed.

  15. IntroductiontoProcessEngineering(PTG) 6. Fluid mechanics

    E-print Network

    Zevenhoven, Ron

    #6/6 IntroductiontoProcessEngineering(PTG) VST rz13 1/96 6. Fluid mechanics: fluid statics; fluid") Introduction to Process Engineering v.2013 #6/6 IntroductiontoProcessEngineering(PTG) VST rz13 2/96 6.1 Fluid statics #12;#6/6 IntroductiontoProcessEngineering(PTG) VST rz13 3/96 Fluid statics, static pressure /1

  16. Fluid Gravity Engineering Rocket motor flow analysis

    E-print Network

    Anand, Mahesh

    Fluid Gravity Engineering Capability · Rocket motor flow analysis -Internal (performance) -External response · Rocket motor plume IR assessments -Plume extent, composition and temperature -Radiation.g. industrial safety, helicopter brown-out etc. · Recruitment -Inspirational mission to attract high quality

  17. Fluid mechanics phenomena in microgravity; ASME Winter Annual Meeting, Anaheim, CA, Nov. 8-13, 1992

    NASA Technical Reports Server (NTRS)

    Siginer, Dennis A. (editor); Weislogel, Mark M. (editor)

    1992-01-01

    This paper is the first in a series of symposia presenting research activity in microgravity fluid mechanics. General topics addressed include two-phase flow and transport phenomena, thermo-capillary flow, and interfacial stability. Papers present mathmatical models of fluid dynamics in the microgravity environment. Applications suggested include space manufacturing and storage of liquids in low gravity.

  18. Proceedings of the ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Michalek, Jeremy J.

    -48409 ROBUST DESIGN FOR PROFIT MAXIMIZATION UNDER UNCERTAINTY OF CONSUMER CHOICE MODEL PARAMETERS USING, discrete choice model NOMENCLATURE c Variable cost C Fixed cost Cumulative distribution function of profit in optimization model wj Engine size constant in optimization model Profit risk tolerance parameter Vector

  19. Proceedings of the ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Chen, YangQuan

    , Plaxis Soft Soil (Creep) and Plaxis Hardening Soil Model were discussed as sum- marized by Brinkgreve [1-strain relation under the condition of first loading and then unloading, besides creep, stress modeling becomes very simple to calibrate. Unfortunately, most engineering materials, including soils, ex

  20. Boston University Department of Mechanical Engineering ME 303 Fluid Mechanics

    E-print Network

    Boston University Department of Mechanical Engineering ME 303 ­ Fluid Mechanics Fall 2011 Class: EK301 Engineering Mechanics Course Textbook: Fundamentals of Fluid Mechanics, 6th ed., Munson B. Reference Texts: Fluid Mechanics, Landau and Lifshitz, Vol. 6 Fluid Mechanics, Y. Cengel and J. Cimbala

  1. Fundamentals of Engineering (FE) Exam Fluid Mechanics Review

    E-print Network

    Provancher, William

    Fundamentals of Engineering (FE) Exam Fluid Mechanics Review Steven Burian Civil & Environmental Engineering March 22, 2013 #12;Morning (Fluid Mechanics) A. Flow measurement B. Fluid properties C. Fluid and mechanical energy balance B. Hydrostatic pressure C. Dimensionless numbers (e.g., Reynolds Number) D. Laminar

  2. Proceedings of FEDSM'02 2002 ASME Fuids Engineering Division Summer Meeting

    E-print Network

    Dabiri, John O.

    in an electro- hydraulic lithotripter. Through the combination of a WENO shock capturing scheme, curvilinear coordinates system and en- semble averaged mixture model, we computed the evolution of the lithotripsy shock wave. 1 Copyright ¬© 2002 by ASME #12;Figure 1. Diagram of a electro-hydraulic lithotripter. Time (¬Ķs

  3. 1 Copyright 2011 by ASME Proceedings of the 2011 International Mechanical Engineering Congress and Exposition

    E-print Network

    Camci, Cengiz

    with a computational assessment of 3D viscous flow behind multiple rows of circular pin fins in coolant channels used and Exposition ASME/IMECE2011 November 11-17, 2011, Denver, Colorado, USA IMECE 2011-64333 UNSTEADY FLOW in gas turbine systems. Unsteady oscillations and turbulent flow characteristics especially near

  4. Department of Mechanical Engineering Spring 2013 Fluid Level Sensing

    E-print Network

    Demirel, Melik C.

    PENNSTATE Department of Mechanical Engineering Spring 2013 Fluid Level Sensing Overview The current course of action to determine the level of fluid in a tank on a tractor requires the operator to get out a system capable of measuring the volume of fluid in a non-uniform reservoir and displaying the value

  5. Proceedings of IMECE 2004 2004 ASME International Mechanical Engineering Congress & Exposition

    E-print Network

    Barth, Eric J.

    HOT GAS SERVOVALVE Kevin B. Fite Jason E. Mitchell Eric J. Barth Michael Goldfarb Department and characterization of a unique three-way hot gas servovalve designed for the flow control of steam at 235¬įC a fluid-powered system utilize servovalves to provide high-bandwidth real-time control of fluid power

  6. CorrespondingAuthor:RajatMittal;mittal@jhu.edu To Appear in ASME Journal of Biomechanical Engineering

    E-print Network

    Mittal, Rajat

    Washington University 2Mechanical Engineering, Johns Hopkins University Keywords: arm pull, freestyle Engineering Technical Brief Comparative Analysis of Thrust Production for Distinct Arm-Pull Styles in Competitive Swimming 1 Alfred von Loebbecke, 2 Rajat Mittal 1Mechanical and Aerospace Engineering, The George

  7. Tracing Injection Fluids in Engineered Geothermal Systems

    NASA Astrophysics Data System (ADS)

    Rose, P. E.; Leecaster, K.; Mella, M.; Ayling, B.; Bartl, M. H.

    2011-12-01

    The reinjection of produced fluids is crucial to the effective management of geothermal reservoirs, since it provides a mechanism for maintaining reservoir pressures while allowing for the disposal of a toxic byproduct. Tracers are essential to the proper location of injection wells since they are the only known tool for reliably characterizing the flow patterns of recirculated fluids. If injection wells are placed too close to production wells, then reinjected fluids do not have sufficient residence time to extract heat from the reservoir and premature thermal breakthrough results. If injection wells are placed too far away, then the reservoir risks unacceptable pressure loss. Several thermally stable compounds from a family of very detectable fluorescent organic compounds (the naphthalene sulfonates) were characterized and found to be effective for use as geothermal tracers. Through batch-autoclave reactions, their Arrhenius pseudo-first-order decay-rate constants were determined. An analytical method was developed that allows for the laboratory determination of concentrations in the low parts-per-trillion range. Field experiments in numerous geothermal reservoirs throughout the world have confirmed the laboratory findings. Whereas conservative tracers such as the naphthalene sulfonates are effective tools for indicating interwell flow patterns and for measuring reservoir pore volumes, 'reactive' tracers can be used to constrain fracture surface area, which is the effective area for heat extraction. This is especially important for engineered geothermal system (EGS) wells, since reactive tracers can be used to measure fracture surface area immediately after drilling and while the well stimulation equipment is still on site. The reactive properties of these tracers that can be exploited to constrain fracture surface area are reversible sorption, contrasting diffusivity, and thermal decay. Laboratory batch- and flow-reactor experiments in combination with numerical simulation studies have served to identify candidate compounds for use as reactive tracers. An emerging class of materials that show promise for use as geothermal and EGS tracers are colloidal nanocrystals (quantum dots). These are semiconductor particles that fluoresce as a function of particle size. Preliminary laboratory experimentation has demonstrated that these thermally stable, water-soluble particles can serve as conservative tracers for geothermal applications. Likewise, they show promise as potential reactive tracers, since their surfaces can be modified to be reversibly sorptive and their diameters are sufficiently large to allow for contrasts in diffusivity with solute tracers.

  8. DRAFT Proceedings of IMECE 2003 2003 ASME International Mechanical Engineering Congress & Exposition

    E-print Network

    Barth, Eric J.

    proportionally controlled servovalves. With this technique, pneumatic fluid flow is directed into or out of each studied by many people [2-6]. An alternative to proportional servovalves in pneumatic control

  9. Environmentally safe fluids for hydraulics used in civil engineering

    SciTech Connect

    Wirzberger, E.; Rexroth, M.

    1995-12-31

    The majority of hydraulic units used in civil engineering are operated with pressure fluids based on mineral oil. Most civil engineering projects are installed near or immediately next to bodies of water, therefore, any leakage signifies danger for the environment. We try to avert this danger with increasingly safe hydraulic drives. However, growing environmental awareness and stricter laws are demanding more and more environmentally safe hydraulic fluids. Today, the manufacturers of fluids and hydraulic drives have to accept this challenge. What exactly is an environmentally safe hydraulic fluid? The major objectives are: (1) they have to be biodegradable, (2) no fish toxicity, (3) no water pollution, and (4) food compatibility.

  10. 1 Copyright 2013 by ASME Proceedings of the ASME 2013 Rail Transportation Division Fall Technical Conference

    E-print Network

    Barkan, Christopher P.L.

    1 Copyright © 2013 by ASME Proceedings of the ASME 2013 Rail Transportation Division Fall Technical ON THE OPTIMIZATION OF RAIL DEFECT INSPECTION FREQUENCY Xiang Liu Rail Transportation and Engineering Center University of Illinois at Urbana-Champaign Urbana, IL, USA C. Tyler Dick Rail Transportation and Engineering

  11. DESIGN OF ENGINE INTAKE SYSTEMS USING COMPUTER SIMULATIONS ASME PAPER ICEF2002-523

    EPA Science Inventory

    A computational study of a direct injection engine intake system was conducted to determine if adding scrouds to the intake valves would improve the swirl performance in the engine. The results show that higher swril was generated with a single port and a shrouded valve....

  12. 1 Copyright 2007 by ASME ABET ALIGNMENT OF LEARNING RESOURCES IN THE ENGINEERING

    E-print Network

    Agogino, Alice M.

    .engineeringpathway.com) strives to provide quality educational resources for learners of all age levels. ABET Engineering Criteria the learning resources from the NEEDS (National Engineering Education Digital-library System) [12] and the K-12 education and professional development resources); but also serves as the information hub for educators

  13. Proceedings of IMECE '03 2003 ASME International Mechanical Engineering Congress and Exposition

    E-print Network

    Shaver, Gregory M.

    Compression Ignition (HCCI) represents a promising combustion strategy for future engines. When achieved work output while maintaining a constant desired combustion phasing. NOMENCLATURE Pi(k) Pressure emissions in internal combustion engines (Caton et al. 2003). HCCI is achieved by increasing the sensible

  14. Proceedings of IMECE2005 2005 ASME International Mechanical Engineering Congress and Exposition

    E-print Network

    Idaho, University of

    OF VEHICLES Akira Okamoto Department of Electrical and Computer Engineering University of Idaho Moscow, Idaho of Idaho Moscow, Idaho 83843-0902 U.S.A dedwards@uidaho.edu ABSTRACT Various control algorithms have been

  15. Proceedings of IMECE2007 2007 ASME International Mechanical Engineering Congress and Exposition

    E-print Network

    Sen, Mihir

    LIQUIDS IN COOLING LOOPS Mihir Sen , Samuel Paolucci and Wenjun (Katherine) Liu Department of Aerospace and Mechanical Engineering University of Notre Dame Notre Dame, Indiana 46556 ABSTRACT Liquids are often pumped the working liquid is very viscous. Ionic liquids, though environmentally friendly, typi- cally have

  16. The 6th ASME-JSME Thermal Engineering Joint Conference Mar 16-20, 2003

    E-print Network

    Yuen, Walter W.

    : flame spreading, radiation, LIFT test, cone calorimeter ABSTRACT Flame spreading is a very important front position and flame spreading velocity of the ASTM LIFT test are generated The heat flux from MODEL ON FLAME SPREADING OVER MATERIALS C. W. LEUNG Department of Building Services Engineering

  17. 1 Copyright 2008 by ASME Proceedings of the 2008 Design Engineering Technical Conferences

    E-print Network

    Michalek, Jeremy J.

    & Computer and Information in Engineering Conferences August 3-6, 2008 New York City, NY, USA IDETC2008 for energy storage, battery weight can have a significant impact on vehicle performance: Additional storage and Meisterling 2008). Trends in electricity generation, battery manufacturing, and the use of biofuels have

  18. Proceedings of MSEC2006 2006 ASME International Conference on Manufacturing Science and Engineering

    E-print Network

    Yao, Y. Lawrence

    residual stresses beneath the treated surface of metallic materials, mechanically produced by high in the relevant information in applications of LSP for various metallic alloys, such as materials properties of Mechanical Engineering, Columbia University New York, NY 10027 ABSTRACT Laser shock peening (LSP

  19. 1 Copyright 2002 by ASME Proceedings of DETC'02

    E-print Network

    Lewis, Kemper E.

    Design, Genetic Algorithms 1. INTRODUCTION In the design of today's increasingly complex engineering1 Copyright © 2002 by ASME Proceedings of DETC'02 ASME 2002 Design Engineering Technical Conferences and Computers and Information in Engineering Conference Montreal, Canada, September 29-October 2

  20. CalTech Chemical Engineering: Fluid Mechanics

    NSDL National Science Digital Library

    This website describes a research project focused on fluid mechanics and transport processes, with an emphasis on "problems at the interface between continuum mechanics and statistical mechanics." The John F. Brady research group uses its own computational method known as Stokesian Dynamics to study complex fluids, and develop and solve macroscopic equations to describe transport in heterogeneous media. Most of the abstracts from the more recent publications are available online. Videos produced as part of the group's research include, Diffusion in Simple Shear Flow, Stokesian Dynamics: Pressure Driven Flow of Suspensions, Stokesian Dynamics Simulation of an Electroreological Fluid, Statistical Mechanics of Bubbly Liquids, Simulation of Colloidal, and Brownian Dynamics. There are also a few presentations that are available online in the pdf format.

  1. Proceedings of FEDSM'02 2002 ASME Fluids Engineering Division Summer Meeting

    E-print Network

    Du, Qiang

    -dimensional dynamical system approximations include, among others, refer- ences (Aubry, et al., 1993)­(Volkwein, 1999 in references (Arian, et al., 2002)­(Volkwein, 2002). Centroidal Voronoi tessellation (CVT) is a clustering tech

  2. Proceedings of HT-FED 2007 2007 ASME Fluids Engineering Summer Conference

    E-print Network

    Smith, Barton L.

    demonstrated using a rectangular air jet. Particle size are measured using the Shadowgraphy method. Numerical-August 2, 2007 HT-FED2007-37267 PARTICLE SIZE CLASSIFICATION THROUGH AERODYNAMIC JET VECTORING Barton L a 2D, particle- laden jet. As the jet is turned, particles present in the flow expe- rience

  3. Proceedings of FEDSM'02 2002 ASME Fluids Engineering Division Summer Meeting

    E-print Network

    with the Large Eddy Simulation of a 3D unsteady shock wave/boundary layer interaction, in sight of tur- bomachinery applications. The simulation of a compressible flow through a 3D channel (ONERA) has been of the 3D interaction are presented and analyzed. The mean velocity profiles in the interaction zone

  4. Proceedings of FEDSM99 3rd ASME/JSME Joint Fluids Engineering Conference

    E-print Network

    Colonius, Tim

    @caltech.edu ABSTRACT The modes of oscillation and radiated acoustic fields of com- pressible flows over open cavities to flow/acoustic resonance. Re- sulting internal acoustic loads with sound pressure levels (SPL) in excess Francisco, California, USA FEDSM99-7228 COMPUTATION OF SOUND GENERATION AND FLOW/ACOUSTIC INSTABILITIES

  5. This copy is for your personal, non-commercial use only. This article may not be reprinted for commercial purposes without the written permission of Mechanical Engineering magazine and ASME. 2008 Mechanical

    E-print Network

    Leonard, Naomi

    This copy is for your personal, non-commercial use only. This article may not be reprinted for commercial purposes without the written permission of Mechanical Engineering magazine and ASME. © 2008 for terrorists, and enable drones to operate in formations. Leonard's first robot teams have already helped

  6. 1 Copyright #### by ASME Proceedings of IMEC 2005

    E-print Network

    Wu, Annie S.

    1 Copyright © #### by ASME Proceedings of IMEC 2005: ASME INTERNATIONAL MECHANICAL ENGINEERING Mehmet Onal Industrial Engineering and Management Systems, UCF Britt Crawford School of Computer Science the behavior of individual Autonomous Vehicles (AV) operating in a team. In the previous work, Genetic

  7. Computational fluid dynamics in aerospace engineering at Wichita State University

    Microsoft Academic Search

    Steve Klausmeyer; S. Reddy; X. Lui; M. Papadakis

    1991-01-01

    A summary of recent research performed in the department of Aerospace Engineering of the Wichita State University in the field of Computational Fluid Dynamics is presented. Computer codes developed and solutions obtained for a variety of flow conditions are also presented. The following subject areas are covered: steady and unsteady free and impinging 2D jet flows; viscous and inviscid solutions

  8. Liquid rocket engine fluid-cooled combustion chambers

    NASA Technical Reports Server (NTRS)

    1972-01-01

    A monograph on the design and development of fluid cooled combustion chambers for liquid propellant rocket engines is presented. The subjects discussed are (1) regenerative cooling, (2) transpiration cooling, (3) film cooling, (4) structural analysis, (5) chamber reinforcement, and (6) operational problems.

  9. 40 CFR 1066.145 - Test fuel, engine fluids, analytical gases, and other calibration standards.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...2014-07-01 2014-07-01 false Test fuel, engine fluids, analytical gases, and other calibration standards. 1066...Analytical Gas Specifications ß 1066.145 Test fuel, engine fluids, analytical gases, and other calibration standards....

  10. Proceedings of industrial applications of fluid mechanics '91

    SciTech Connect

    Morrow, T.B.

    1991-01-01

    This book reports on the fifth Forum on Industrial Applications of Fluid Mechanics sponsored by the Fluid Applications and Systems Technical Committee of the ASME Fluids Engineering Division. The Forum objective is to promote the discussion and interchange of current information on developing and state-of-the-art applications of fluid mechanics technology. The program is organized as a technical forum to encourage the presentation of new ideas, especially those which may be so innovative that a conservative review process might delay their dissemination to the fluids engineering community.

  11. ASME Code Efforts Supporting HTGRs

    SciTech Connect

    D.K. Morton

    2012-09-01

    In 1999, an international collaborative initiative for the development of advanced (Generation IV) reactors was started. The idea behind this effort was to bring nuclear energy closer to the needs of sustainability, to increase proliferation resistance, and to support concepts able to produce energy (both electricity and process heat) at competitive costs. The U.S. Department of Energy has supported this effort by pursuing the development of the Next Generation Nuclear Plant, a high temperature gas-cooled reactor. This support has included research and development of pertinent data, initial regulatory discussions, and engineering support of various codes and standards development. This report discusses the various applicable American Society of Mechanical Engineers (ASME) codes and standards that are being developed to support these high temperature gascooled reactors during construction and operation. ASME is aggressively pursuing these codes and standards to support an international effort to build the next generation of advanced reactors so that all can benefit.

  12. ASME Code Efforts Supporting HTGRs

    SciTech Connect

    D.K. Morton

    2011-09-01

    In 1999, an international collaborative initiative for the development of advanced (Generation IV) reactors was started. The idea behind this effort was to bring nuclear energy closer to the needs of sustainability, to increase proliferation resistance, and to support concepts able to produce energy (both electricity and process heat) at competitive costs. The U.S. Department of Energy has supported this effort by pursuing the development of the Next Generation Nuclear Plant, a high temperature gas-cooled reactor. This support has included research and development of pertinent data, initial regulatory discussions, and engineering support of various codes and standards development. This report discusses the various applicable American Society of Mechanical Engineers (ASME) codes and standards that are being developed to support these high temperature gascooled reactors during construction and operation. ASME is aggressively pursuing these codes and standards to support an international effort to build the next generation of advanced reactors so that all can benefit.

  13. 1 Copyright 2004 by ASME Proceedings of DETC'04

    E-print Network

    Saitou, Kazuhiro "Kazu"

    This paper presents a method for identifying the optimal designs of components and joints in the space frame on an aluminum space frame (ASF) of a middle size passenger vehicle is discussed. INTRODUCTION While often ideal1 Copyright © 2004 by ASME Proceedings of DETC'04: ASME 2004 Design Engineering Technical

  14. 1 Copyright 2007 by ASME Proceedings of HT2007

    E-print Network

    Maruyama, Shigeo

    , studies on non-stationary heat conduction show that the extensive ballistic phonon transport gives rise1 Copyright © 2007 by ASME Proceedings of HT2007 2007 ASME-JSME Thermal Engineering Summer Heat Transfer Conference July 8-12, 2007, Vancouver, British Columbia, CANADA HT2007-32046 TOPICS OF HEAT

  15. 1 Copyright 2003 by ASME Proceedings of IMECE'03

    E-print Network

    MŁller, Norbert

    1 Copyright © 2003 by ASME Proceedings of IMECE'03 2003 ASME International Mechanical Engineering Congress & Exposition Washington, D.C., November 16-21, 2003 IMECE2003-44222 UTILIZING WAVE ROTOR TECHNOLOGY TO ENHANCE THE TURBO COMPRESSION IN POWER AND REFRIGERATION CYCLES Pezhman Akbari Michigan State

  16. 1 Copyright 2006 by ASME Proceedings of IMECE2006

    E-print Network

    Kandlikar, Satish

    1 Copyright © 2006 by ASME Proceedings of IMECE2006 2006 ASME International Mechanical Engineering Congress and Exposition November 5-10, 2006, Chicago, Illinois IMECE2006-13310 CRITICAL HEAT FLUX MEASUREMENT AND MODEL FOR REFRIGERANT-123 UNDER STABILIZED FLOW CONDITIONS IN MICROCHANNELS Wai Keat Kuan

  17. 1 Copyright 2004 by ASME Proceedings of IMECE04

    E-print Network

    MŁller, Norbert

    1 Copyright © 2004 by ASME Proceedings of IMECE04 2004 ASME International Mechanical Engineering Congress November 13≠19, 2004, Anaheim, California USA IMECE2004-60082 A REVIEW OF WAVE ROTOR TECHNOLOGY turbines, and water refrigeration systems, highlighting possible further efforts on this topic

  18. 1 Copyright 2004 by ASME Proceedings of IMECE2004

    E-print Network

    Kostic, Milivoje M.

    1 Copyright © 2004 by ASME Proceedings of IMECE2004 2004 ASME International Mechanical Engineering Congress and RD&D Expo November 13-19, 2004, Anaheim, California USA IMECE2004-59282 IRREVERSIBILITY transfer R refrigeration R heat transfer reservoir (system) S entropy S entropy change magnitude (absolute

  19. 1 Copyright 2007 by ASME Proceedings of IMECE2007

    E-print Network

    Hidrovo, Carlos H.

    1 Copyright © 2007 by ASME Proceedings of IMECE2007 2007 ASME International Mechanical Engineering Congress and Exposition November 11-15, 2007, Seattle, Washington, USA IMECE2007-42553 VAPOR removal with low junction temperatures motivates research in a wide variety of cooling and refrigeration

  20. 1 Copyright 2005 by ASME Proceedings of IDETC'05

    E-print Network

    Shu, Lily H.

    of biomimetic design is the development of Velcro after observing that cockleburs attach to clothing and fur1 Copyright © 2005 by ASME Proceedings of IDETC'05 ASME 2005 International Design Engineering Beach, California, USA DETC2005-84908 BRIDGING CROSS-DOMAIN TERMINOLOGY FOR BIOMIMETIC DESIGN I. Chiu

  1. Proceedings of ASME 2011 5th International Conference on Energy Sustainability & 9th Fuel Cell Science, Engineering

    E-print Network

    Bahrami, Majid

    -ION BATTERY PACKS FOR HYBRID AND ELECTRIC VEHICLES Peyman Taheri Mechatronic Systems Engineering School Email: slh2@sfu.ca Majid Bahrami Mechatronic Systems Engineering School of Engineering Science Simon Science, Engineering and Technology Conference ESFuelCell2011 August 7-10, 2011, Washington, DC, USA DRAFT

  2. Teaching Computational Fluid Dynamics (CFD) to Design Engineers

    NSDL National Science Digital Library

    Hu, Junling

    Computational Fluid Dynamics (CFD) can provide detailed thermal flow information, such as temperature field, pressure field and velocity field, in equipment and process in various industries. Due to the recent rapid growth of powerful computer resources and the development of commercial CFD software packages, CFD has been proven a useful tool for mechanical design engineers. CFD has also gained broad acceptance in the engineering education. It has been adopted in both undergraduate and graduate level courses in many universities. The teaching of CFD in current engineering education can be classified into two types, one is to focus on the numerical methods with little emphasis on using the software and the other is to introduce a CFD software as a virtual reality laboratory in Fluid Mechanics class without emphasis on teaching software. In the first type, students need strong mathematical background to succeed in the class and also need further training to effectively use modern commercial software for real industrial application. While in the second type, students only learned an abstract form of CFD processes, thus they will not be able to use CFD commercial software without further training in this area. This paper is about the use of CFD in teaching graduate students at this university who were in a two year design track program. Many of these students did not have a good background in mathematics, fluid dynamics, heat transfer, and programming, however, most of them were good at computer aided design in ProE and were very interested in learning CFD as a design tool in industries. STAR-CCM+ was chosen as the CFD software to teach students the entire CFD process in a single integrated software environment. After building a geometry model in ProE, students learned to import the CAD model, set up mesh model, physical model and solver, and postprocess the results in STAR-CCM+. Based on projects, CFD numerical methods and fundamentals of heat transfer and fluid flow were introduced to help students understand the CFD process, interpret, and validate simulation results.

  3. Globally Distributed Engineering Teams in Computational Fluid Dynamics and in Product Development

    E-print Network

    Schmidt, Susanne R.

    2010-10-12

    of the requirements for the degree of MASTER OF SCIENCE August 2010 Major Subject: Mechanical Engineering GLOBALLY DISTRIBUTED ENGINEERING TEAMS IN COMPUTATIONAL FLUID DYNAMICS AND IN PRODUCT DEVELOPMENT A Thesis by SUSANNE REGINA SCHMIDT..., Tracy Anne Hammond Head of Department, Dennis L. O?Neal August 2010 Major Subject: Mechanical Engineering iii ABSTRACT Globally Distributed Engineering Teams in Computational Fluid Dynamics and in Product Development. (August 2010...

  4. 1 Copyright 2010 by ASME Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and 8th International

    E-print Network

    Hu, Hui

    with the adiabatic cooling effectiveness maps measured by using pressure sensitive paint (PSP) technique to elucidate. The trailing edges of modern high pressure turbine blades are usually cooled by jets blown tangentially through a breakout slot on the pressure-side of the blade, which is shown schematically in Fig. 1. Overheating

  5. Fluids

    NSDL National Science Digital Library

    Brieske, Joel A.

    2002-01-01

    This Topic in Depth explores the Web's offerings on the physics of fluids. By an educational Web site called School for Champions, the first site is the Fluids lesson plan (1). Here, students or anyone interested can read about the basics of fluids and then take a short interactive quiz on the topic. The second site is maintained by Steve Lower of the Department of Chemistry at Simon Fraser University called Liquids and their Vapors (2). This Adobe Acrobat (.pdf) file contains an eighteen-page document that covers topics such as properties of liquids and changes of state. The next site contains an interactive multimedia activity presented by explorescience.com called Floating Log (3). The site allows users to explore how a fluid can affect buoyancy by letting them change the mass of the log and the fluid's density. The next site from Purdue University's Chemical Education Web site is called Liquids (4). This page describes the structure of liquids, what kinds of materials form liquids, vapor pressure, and more. The fifth site, offered by Professor M.S. Cramer at the College of Engineering at Virginia Tech, is entitled Gallery of Fluid Dynamics (5). It contains movies, animations, photographs, and descriptions of various fluid mechanics topics such as condensation, shock waves, and supersonic cars. Next comes the Innovative Technology Solutions Corporation's Fundamental Fluid Mechanics Movies Web site (6). Over thirty short films show how fluids move in various conditions including gravity waves, fire, material transport, and hydraulics. From the University of Waterloo's Department of Mechanical Engineering-Microelectronics Heat Transfer Laboratory comes the next site, called the Fluid Properties Calculator (7). This online tool allows users to select a fluid and enter a temperature to calculate various parameters such as density, viscosity, specific heat, and thermal diffusivity. The last site is the online journal Physics of Fluids (8), which is published monthly by the American Institute of Physics with the cooperation of The American Physical Society Division of Fluid Dynamics. The journal is "devoted to the publication of original theoretical, computational, and experimental contributions to the dynamics of gases, liquids, and complex or multiphase fluids" and provides free full-text articles for online viewing.

  6. Vortex element methods for fluid dynamic analysis of engineering systems

    NASA Astrophysics Data System (ADS)

    Lewis, Reginald Ivan

    The surface-vorticity method of computational fluid mechanics is described, with an emphasis on turbomachinery applications, in an introduction for engineers. Chapters are devoted to surface singularity modeling; lifting bodies, two-dimensional airfoils, and cascades; mixed-flow and radial cascades; bodies of revolution, ducts, and annuli; ducted propellers and fans; three-dimensional and meridional flows in turbomachines; free vorticity shear layers and inverse methods; vortex dynamics in inviscid flows; the simulation of viscous diffusion in discrete vortex modeling; vortex-cloud modeling by the boundary-integral method; vortex-cloud models for lifting bodies and cascades; and grid systems for vortex dynamics and meridional flows. Diagrams, graphs, and the listings for a set of computer programs are provided.

  7. Centre Hydraulic Power Supply Unit University of Saskatchewan -Mechanical Engineering Fluid Power and Controls

    E-print Network

    Saskatchewan, University of

    Centre Hydraulic Power Supply Unit University of Saskatchewan - Mechanical Engineering ­ Fluid Power and Controls ID: FP0003 Rev: 001 Date: May 31, 2010 Page: 1 of 7 Centre Hydraulic Power Supply;Centre Hydraulic Power Supply Unit University of Saskatchewan - Mechanical Engineering ­ Fluid Power

  8. Department of Mechanical Engineering Fall 2010 Viscosity Measurement of Troublesome Fluids

    E-print Network

    Demirel, Melik C.

    PENNSTATE Department of Mechanical Engineering Fall 2010 Viscosity Measurement of Troublesome Fluids Overview Air Products completes many batches of a variety of different fluids every year altering the composition of the fluid. Objectives The new design needs to shorten the amount of time

  9. ASME Material Challenges for Advanced Reactor Concepts

    SciTech Connect

    Piyush Sabharwall; Ali Siahpush

    2013-07-01

    This study presents the material Challenges associated with Advanced Reactor Concept (ARC) such as the Advanced High Temperature Reactor (AHTR). ACR are the next generation concepts focusing on power production and providing thermal energy for industrial applications. The efficient transfer of energy for industrial applications depends on the ability to incorporate cost-effective heat exchangers between the nuclear heat transport system and industrial process heat transport system. The heat exchanger required for AHTR is subjected to a unique set of conditions that bring with them several design challenges not encountered in standard heat exchangers. The corrosive molten salts, especially at higher temperatures, require materials throughout the system to avoid corrosion, and adverse high-temperature effects such as creep. Given the very high steam generator pressure of the supercritical steam cycle, it is anticipated that water tube and molten salt shell steam generators heat exchanger will be used. In this paper, the ASME Section III and the American Society of Mechanical Engineers (ASME) Section VIII requirements (acceptance criteria) are discussed. Also, the ASME material acceptance criteria (ASME Section II, Part D) for high temperature environment are presented. Finally, lack of ASME acceptance criteria for thermal design and analysis are discussed.

  10. 46 CFR 54.01-2 - Adoption of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...of section VIII of the ASME Boiler and Pressure Vessel Code. 54.01-2 Section...CONTINUED) MARINE ENGINEERING PRESSURE VESSELS General Requirements ß 54...of section VIII of the ASME Boiler and Pressure Vessel Code. (a) Pressure...

  11. 46 CFR 54.01-2 - Adoption of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...of section VIII of the ASME Boiler and Pressure Vessel Code. 54.01-2 Section...CONTINUED) MARINE ENGINEERING PRESSURE VESSELS General Requirements ß 54...of section VIII of the ASME Boiler and Pressure Vessel Code. (a) Pressure...

  12. 46 CFR 54.01-2 - Adoption of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...of section VIII of the ASME Boiler and Pressure Vessel Code. 54.01-2 Section...CONTINUED) MARINE ENGINEERING PRESSURE VESSELS General Requirements ß 54...of section VIII of the ASME Boiler and Pressure Vessel Code. (a) Pressure...

  13. 46 CFR 54.01-2 - Adoption of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...of section VIII of the ASME Boiler and Pressure Vessel Code. 54.01-2 Section...CONTINUED) MARINE ENGINEERING PRESSURE VESSELS General Requirements ß 54...of section VIII of the ASME Boiler and Pressure Vessel Code. (a) Pressure...

  14. 46 CFR 54.01-2 - Adoption of division 1 of section VIII of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...of section VIII of the ASME Boiler and Pressure Vessel Code. 54.01-2 Section...CONTINUED) MARINE ENGINEERING PRESSURE VESSELS General Requirements ß 54...of section VIII of the ASME Boiler and Pressure Vessel Code. (a) Pressure...

  15. Proceedings of IDETC/CIE 2006 ASME 2006 International Design Engineering Technical Conferences & Computers and Information in

    E-print Network

    Seepersad, Carolyn Conner

    Green@letu.edu Julie S. Linsey jlinsey@mail.utexas.edu Carolyn C. Seepersad ccseepersad@mail.utexas.edu Kristin L. Wood wood@mail.utexas.edu Manufacturing and Design Research Laboratory Department of Mechanical Engineering, possible implications of a product include: delight, satisfaction, indifference, or disgust on the part

  16. Method for starting and operating an advanced regenerative parallel compound dual fluid heat engine-advanced Cheng cycle(ACC)

    Microsoft Academic Search

    1993-01-01

    In a Cheng cycle, dual fluid heat engine of the type is described having: (i) a gas turbine engine including a compressor for compressing a first working fluid, having a compressor outlet, a combustion chamber in fluid communication with the compressor outlet, a turbine unit having an inlet in fluid communication with the combustion chamber for performing work by expansion

  17. Proceedings of industrial applications of fluid mechanics

    SciTech Connect

    Sherif, S.A. (University of Miami (US)); Morrow, T.B. (Southwest Research Inst. (US)); Marshall, L.R. (E.I. duPont de Nemours and Co. (US)); Dalton, C. (University of Houston (US))

    1990-01-01

    The is the fourth Forum on Industrial Applications of Fluid Mechanics sponsored by the Fluid Mechanics Committee of the ASME Fluids Engineering Division. The Forum objective is to promote the discussion and interchange of current information on developing and state-of-the-art applications of fluid mechanics technology. The program is organized as a technical forum to encourage the presentation of new ideas, especially those which may be so innovative that a conservative review process might delay their dissemination to the fluids engineering community. Four sessions and a total of 17 papers are scheduled for this program. Three of the four sessions were devoted to contributed papers, while the fourth is a panel discussion with three invited presentations. All papers were reviewed editorially to assure that they are related to the forum theme The papers were not evaluated technically, and therefore carry no endorsement from the Fluid Mechanics Committee or the Fluids Engineering Division with regard to peer evaluation. The forum presentations will focus on specific applications of fluid mechanics technology. Lively discussion of the papers is encouraged at the forum. The Fluid Mechanics Committee plans to sponsor a forum with an industrial applications theme each year at the ASME Winter Annual Meeting. In 1991, the scope of the forum will be enlarged to include the topic of textile applications of fluid mechanics, and another panel session featuring speakers with industrial experience in different areas of fluid mechanics applications. In future years, it is anticipated that the forum will solicit papers from other areas where fluid mechanics technology is applied.

  18. Acquisition Services Management (ASM) Division Subcontracts, ASM-SUB

    E-print Network

    Acquisition Services Management (ASM) Division Subcontracts, ASM-SUB P.O. Box 1663, Mail Stop D447-point list. Darren Knox Acquisition Services Management Los Alamos National Security, LLC Los Alamos National

  19. Acquisition Services Management (ASM) Division Subcontracts, ASM-SUB

    E-print Network

    Acquisition Services Management (ASM) Division Subcontracts, ASM-SUB P.O. Box 1663, Mail Stop D447, and will not reimburse companies for such costs. Darren Knox Acquisition Services Management Los Alamos National Security

  20. Computational fluid dynamic design of rocket engine pump components

    NASA Technical Reports Server (NTRS)

    Chen, Wei-Chung; Prueger, George H.; Chan, Daniel C.; Eastland, Anthony H.

    1992-01-01

    Integration of computational fluid dynamics (CFD) for design and analysis of turbomachinery components is needed as the requirements of pump performance and reliability become more stringent for the new generation of rocket engine. A fast grid generator, designed specially for centrifugal pump impeller, which allows a turbomachinery designer to use CFD to optimize the component design will be presented. The CFD grid is directly generated from the impeller blade G-H blade coordinates. The grid points are first generated on the meridional plane with the desired clustering near the end walls. This is followed by the marching of grid points from the pressure side of one blade to the suction side of a neighboring blade. This fast grid generator has been used to optimize the consortium pump impeller design. A grid dependency study has been conducted for the consortium pump impeller. Two different grid sizes, one with 10,000 grid points and one with 80,000 grid points were used for the grid dependency study. The effects of grid resolution on the turnaround time, including the grid generation and completion of the CFD analysis, is discussed. The impeller overall mass average performance is compared for different designs. Optimum design is achieved through systematic change of the design parameters. In conclusion, it is demonstrated that CFD can be effectively used not only for flow analysis but also for design and optimization of turbomachinery components.

  1. Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering June 10-15, 2012, Rio de Janeiro, Brazil

    E-print Network

    Grilli, Stéphan T.

    platforms gradually increased in power, accurate and efficient three- dimensional (3D) computational wave complex processes of ocean wave generation, propagation over arbitrary bottom topography, interaction1 Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic

  2. 46 CFR 57.02-2 - Adoption of section IX of the ASME Code.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING WELDING AND BRAZING General Requirements ß 57.02-2...accordance with section IX of the ASME (American Society of Mechanical Engineers) Code, as limited, modified, or...

  3. 46 CFR 57.02-2 - Adoption of section IX of the ASME Code.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING WELDING AND BRAZING General Requirements ß 57.02-2...accordance with section IX of the ASME (American Society of Mechanical Engineers) Code, as limited, modified, or...

  4. 46 CFR 57.02-2 - Adoption of section IX of the ASME Code.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING WELDING AND BRAZING General Requirements ß 57.02-2...accordance with section IX of the ASME (American Society of Mechanical Engineers) Code, as limited, modified, or...

  5. 46 CFR 57.02-2 - Adoption of section IX of the ASME Code.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING WELDING AND BRAZING General Requirements ß 57.02-2...accordance with section IX of the ASME (American Society of Mechanical Engineers) Code, as limited, modified, or...

  6. Proceedings of the ASME 2012 Fluids Engineering Summer Meeting July 8-12, 2012, Rio Grande, Puerto Rico, USA

    E-print Network

    Apte, Sourabh V.

    feature, such as in packed bed chemical or nuclear reactors. In stream bed flows, iner- tial flow features to enhance re- action rates or heat transfer in packed bed reactors [3]. Rapidly increasing processing power packed beds of spheres at moderate flow rates, 50 Re 1300. The latter employs non-body conforming

  7. Proceedings of the ASME 2010 Fluids Engineering Summer Meeting August 1-5, 2010, Montreal, Quebec, Canada

    E-print Network

    Apte, Sourabh V.

    at reference temperature 298K, [kJ/mol] HR,k Specific heat of reaction of the kth reaction, [kJ/mol] k Thermal conductivity of mixture, [kW/m-K] kf Specific reaction rate constant,[kmol/m2 -s] Mi Molecular weight/min] rk Reaction rate of kth reaction, [kmol/m2 -s] si Rate of chemical species adsorption and desorption

  8. Testing of the Multi-Fluid Evaporator Engineering Development Unit

    NASA Technical Reports Server (NTRS)

    Quinn, Gregory; O'Connor, Ed; Riga, Ken; Anderson, Molly; Westheimer, David

    2007-01-01

    Hamilton Sundstrand is under contract with the NASA Johnson Space Center to develop a scalable, evaporative heat rejection system called the Multi-Fluid Evaporator (MFE). It is being designed to support the Orion Crew Module and to support future Constellation missions. The MFE would be used from Earth sea level conditions to the vacuum of space. The current Shuttle configuration utilizes an ammonia boiler and flash evaporator system to achieve cooling at all altitudes. The MFE system combines both functions into a single compact package with significant weight reduction and improved freeze-up protection. The heat exchanger core is designed so that radial flow of the evaporant provides increasing surface area to keep the back pressure low. The multiple layer construction of the core allows for efficient scale up to the desired heat rejection rate. The full scale MFE prototype will be constructed with four core sections that, combined with a novel control scheme, manage the risk of freezing the heat exchanger cores. A sub-scale MFE engineering development unit (EDU) has been built, and is identical to one of the four sections of a full scale prototype. The EDU has completed testing at Hamilton Sundstrand. The overall test objective was to determine the thermal performance of the EDU. The first set of tests simulated how each of the four sections of the prototype would perform by varying the chamber pressure, evaporant flow rate, coolant flow rate and coolant temperature. A second set of tests was conducted with an outlet steam header in place to verify that the outlet steam orifices prevent freeze-up in the core while also allowing the desired thermal turn-down ratio. This paper discusses the EDU tests and results.

  9. The low temperature differential Stirling engine with working fluid operated on critical condition

    SciTech Connect

    Naso, V.; Dong, W.; Lucentini, M.; Capata, R.

    1998-07-01

    The research and development of low temperature differential Stirling engine has a great potential market since a lot of thermal energy at low temperature can supply it and the cost of this kind of engine is lower than general Stirling engine. The characteristics of low compression ratio and low differential temperature Stirling engine may be satisfied with working fluid compressed on critical conditions. By combining two phase heat transfer with forced convective flow in compression space and through the regenerator in the engine, a new heat transfer coefficient emerges capable of absorbing and releasing high heat fluxes without the corresponding low temperature increase. The current analysis focuses on the study of Stirling engines with working fluid compressed on critical conditions, thus at two-phase heat transfer in compression space and regenerator of the engine under forced convective flow conditions.

  10. The effects of fracture fluid cleanup upon the analysis of pressure buildup tests in tight gas reservoirs

    E-print Network

    Johansen, Atle Thomas

    1988-01-01

    THE EFFECTS OF FRACTURE FLUID CLEANUP UPON THE ANALYSIS OF PRESSURE BUILDUP TESTS IN TIGHT GAS RESERVOIRS A Thesis by ATLE THOMAS JOHANSEN Submitted to the Office of Graduate Studies of Texas ASM University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1988 Major Subject: Petroleum Engineering THE EFFECTS OF FRACTURE FLUID CLEANUP UPON THE ANALYSIS OF PRESSURE BUILDUP TESTS IN TIGHT GAS RESERVOIRS A Thesis by ATLE THOMAS JOHANSEN Approved...

  11. Mechanical interaction between cells and fluid for bone tissue engineering scaffold: Modulation of the interfacial shear stress

    E-print Network

    Guerraoui, Rachid

    Mechanical interaction between cells and fluid for bone tissue engineering scaffold: Modulation Analytical solution Bone tissue engineering a b s t r a c t An analytical model of the fluid/cell mechanical n f o Article history: Accepted 1 November 2009 Keywords: Cell fluid interaction Shear stress

  12. An Innovative Improvement of Engineering Learning System Using Computational Fluid Dynamics Concept

    ERIC Educational Resources Information Center

    Hung, T. C.; Wang, S. K.; Tai, S. W.; Hung, C. T.

    2007-01-01

    An innovative concept of an electronic learning system has been established in an attempt to achieve a technology that provides engineering students with an instructive and affordable framework for learning engineering-related courses. This system utilizes an existing Computational Fluid Dynamics (CFD) package, Active Server Pages programming,Ö

  13. 1 Copyright 2006 by ASME Proceedings of IDETC/CIE 2006

    E-print Network

    Shu, Lily H.

    to clothing and fur. First presented in this section will be related work in analogical reasoning and design1 Copyright © 2006 by ASME Proceedings of IDETC/CIE 2006 ASME 2006 International Design Engineering, Philadelphia, Pennsylvania, USA DETC2006-99398 CASE STUDY IN BIOMIMETIC DESIGN: HANDLING AND ASSEMBLY

  14. Fluid film lubrication in the internal combustion engine

    Microsoft Academic Search

    C. M. Taylor

    1992-01-01

    The interdisciplinary nature of the subject of tribology has been frequently emphasized during the last quarter of a century. An interested observer might reasonably question, however, the strength of the link between fluid-film lubrication at the one end of the tribological spectrum and dry wear\\/surface phenomena at the other. The foundations of fundamental understanding of the former area were laid

  15. Early Work on Fluid Mechanics in The IC Engine

    NASA Astrophysics Data System (ADS)

    Lumley, John L.

    Early work of Ricardo is described, in which squish is used in flat-head engines to generate turbulence levels comparable to those in overhead-valve engines, leading to rapid flame propagation, and suppressing knock. Work by NACA before World War II is described, in which turbulence levels were measured in overhead-valve engines, indicating indirectly that surprisingly high levels were achieved just before ignition, possibly due to a tumble instability. Finally, work of Obukhov of 30 years ago is described, in which instabilities of tumbling flow are investigated in ellipsoids crudely modeling the engine cylinder as the piston rises; this suggests that there is an instability leading to intense small-scale motion just before ignition. Suggestions for further work are given.

  16. Proceedings of the ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems

    E-print Network

    Shapiro, Benjamin

    SIMULATIONS OF CHAIN FORMATION AND RESTRUCTURING DYNAMICS IN A MAGNETORHEOLOGICAL FLUID Steve G. Sherman Derek, Maryland, 20742 ABSTRACT Magnetorheological fluids consist of micron sized iron par- ticles mixed Re Reynolds Number 1 Copyright c 2011 by ASME #12;INTRODUCTION Magnetorheological (MR) fluids

  17. ASME Nuclear Crane Standards for Enhanced Crane Safety and Increased Profit

    NASA Astrophysics Data System (ADS)

    Parkhurst, Stephen N.

    2000-01-01

    The ASME NOG-1 standard, 'Rules for Construction of Overhead and Gantry Cranes', covers top running cranes for nuclear facilities; with the ASME NUM-1 standard, 'Rules for Construction of Cranes, Monorails, and Hoists', covering the single girder, underhung, wall and jib cranes, as well as the monorails and hoists. These two ASME nuclear crane standards provide criteria for designing, inspecting and testing overhead handling equipment with enhanced safety to meet the 'defense-in-depth' approach of the United States Nuclear Regulatory Commission (USNRC) documents NUREG 0554 and NUREG 0612. In addition to providing designs for enhanced safety, the ASME nuclear crane standards provide a basis for purchasing overhead handling equipment with standard safety features, based upon accepted engineering principles, and including performance and environmental parameters specific to nuclear facilities. The ASME NOG-1 and ASME NUM-1 standards not only provide enhanced safety for handling a critical load, but also increase profit by minimizing the possibility of load drops, by reducing cumbersome operating restrictions, and by providing the foundation for a sound licensing position. The ASME nuclear crane standards can also increase profit by providing the designs and information to help ensure that the right standard equipment is purchased. Additionally, the ASME nuclear crane standards can increase profit by providing designs and information to help address current issues, such as the qualification of nuclear plant cranes for making 'planned engineered lifts' for steam generator replacement and decommissioning.

  18. 6. Fluid mechanics: fluid statics; fluid dynamics

    E-print Network

    Zevenhoven, Ron

    1/96 6. Fluid mechanics: fluid statics; fluid dynamics (internal flows, external flows) Ron and Flow Engineering | 20500 Turku | Finland 2/96 6.1 Fluid statics √?bo Akademi University | Thermal and Flow Engineering | 20500 Turku | Finland #12;3/96 Fluid statics, static pressure /1 Two types

  19. Supercritical fluid extraction and chromatography using a Lee Scientific Series 600 SFE/SFC System

    E-print Network

    Green, Timothy Scott

    1992-01-01

    SUPERCRITICAL FIUID EXTRACTION AND CHROMATOGRAPHY USING A ERE SCIENTIFIC SERIES 600 SFE/SFC SYSTEM A Thesis by TIMOTHY SCOTT GREEN Submitted to the Office of Graduate Studies of Texas ASM University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May 1992 Major Subject: Civil Engineering SUPERCRITICAL FLUID EXTRACTION AND CHROMATOGRAPHY USING A LEE SCIENTIFIC SERIES 600 SFE/SFC SYSTEM A Thesis by TIMOTHY SCOTT GREEN Approved as to style and content by: James S...

  20. Neutron imaging of hydrogen-rich fluids in geomaterials and engineered porous media: A review

    E-print Network

    Perfect, Ed

    Neutron imaging of hydrogen-rich fluids in geomaterials and engineered porous media: A review E 2013 Accepted 25 November 2013 Available online 12 December 2013 Keywords: Neutron imaging Porous media employed in this context, but are subject to significant limitations. In contrast, neutrons are ideally

  1. HYPower Hydraulic Power Supply Unit University of Saskatchewan -Mechanical Engineering Fluid Power and Controls

    E-print Network

    Saskatchewan, University of

    HYPower Hydraulic Power Supply Unit University of Saskatchewan - Mechanical Engineering ­ Fluid Power and Controls ID: FP0002 Rev: 002 Date: May 31, 2010 Page: 1 of 7 Hydraulic Power Supply (HYPower-5462 Secondary Contact: #12;HYPower Hydraulic Power Supply Unit University of Saskatchewan - Mechanical

  2. East Hydraulic Power Supply Unit University of Saskatchewan -Mechanical Engineering Fluid Power and Controls

    E-print Network

    Saskatchewan, University of

    East Hydraulic Power Supply Unit University of Saskatchewan - Mechanical Engineering ­ Fluid Power and Controls ID: FP0004 Rev: 001 Date: May 31, 2010 Page: 1 of 7 East Hydraulic Power Supply and Test Bench. Approved By: Primary Contact: Doug Bitner Rm: 1B15.1 966-5462 Secondary Contact: #12;East Hydraulic Power

  3. Hydraulic Fluids and Jet Engine Oil: Pyrolysis and Aircraft Air Quality

    Microsoft Academic Search

    C. Van Netten; V. Leung

    2001-01-01

    Incidents of smoke in aircraft cabins often result from jet engine oil and\\/or hydraulic fluid that leaks into ventilation air, which can be subjected to temperatures that exceed 500 įC. Exposed flight-crew members have reported symptoms, including dizziness, nausea, disorientation, blurred vision, and tingling in the legs and arms. In this study, the authors investigated pyrolysis products of one jet

  4. FLUID MODELING DEMONSTRATION OF GOOD-ENGINEERING-PRACTICE STACK HEIGHT IN COMPLEX TERRAIN

    EPA Science Inventory

    A demonstration study using fluid modeling to determine the good-engineering-practice (GEP) stack height for a power plant installation in complex terrain is discussed. The site chosen for this demonstration study was the Clinch River Power Plant in southwestern Virginia, and a 1...

  5. Fluid dynamics of bioreactors for tissue engineered cartilage

    Microsoft Academic Search

    G. P. Neitzel; M. K. Smith; P. Sucosky; D. Moreau; J. Pennecot

    2002-01-01

    Various types of bioreactors have been investigated for use in producing tissue-engineered human cartilage. These include rotating-wall vessels, spinner flasks, perfusion and compression\\/perfusion bioreactors. In each type of reactor the flow of the culture medium causes the growing tissue to experience a different dynamic environment, potentially influencing the character of the final tissue. Laboratory measurements have been made in model

  6. 1 Copyright 2002 by ASME Proceedings of OMAE'02

    E-print Network

    Byrne, Byron

    applications including as foundations for mobile drilling rigs (jack-ups) and offshore wind turbines. A special1 Copyright © 2002 by ASME Proceedings of OMAE'02 21st International Conference on Offshore OF OFFSHORE FOUNDATIONS IN SOFT CLAY SOILS B.W. Byrne Department of Engineering Science The University

  7. NIST Standard Reference Database 10 NIST/ASME Steam Properties

    E-print Network

    Magee, Joseph W.

    #12;NIST Standard Reference Database 10 NIST/ASME Steam Properties Version 2.22 Users' Guide Allan of Standards and Technology 1 Present Address: Mathematical and Computational Sciences Division National Institute of Standards and Technology 2 Permanent Address: Department of Mechanical Engineering University

  8. Fluid flow and fuel-air mixing in a motored two-dimensional Wankel rotary engine

    NASA Technical Reports Server (NTRS)

    Shih, T. I.-P.; Nguyen, H. L.; Stegeman, J.

    1986-01-01

    The implicit-factored method of Beam and Warming was employed to obtain numerical solutions to the conservation equations of mass, species, momentum, and energy to study the unsteady, multidimensional flow and mixing of fuel and air inside the combustion chambers of a two-dimensional Wankel rotary engine under motored conditions. The effects of the following engine design and operating parameters on fluid flow and fuel-air mixing during the intake and compression cycles were studied: engine speed, angle of gaseous fuel injection during compression cycle, and speed of the fuel leaving fuel injector.

  9. Fluid flow and fuel-air mixing in a motored two-dimensional Wankel rotary engine

    NASA Astrophysics Data System (ADS)

    Shih, T. I.-P.; Nguyen, H. L.; Stegeman, J.

    1986-06-01

    The implicit-factored method of Beam and Warming was employed to obtain numerical solutions to the conservation equations of mass, species, momentum, and energy to study the unsteady, multidimensional flow and mixing of fuel and air inside the combustion chambers of a two-dimensional Wankel rotary engine under motored conditions. The effects of the following engine design and operating parameters on fluid flow and fuel-air mixing during the intake and compression cycles were studied: engine speed, angle of gaseous fuel injection during compression cycle, and speed of the fuel leaving fuel injector.

  10. Computational fluid dynamics applied to flows in an internal combustion engine

    NASA Technical Reports Server (NTRS)

    Griffin, M. D.; Diwakar, R.; Anderson, J. D., Jr.; Jones, E.

    1978-01-01

    The reported investigation is a continuation of studies conducted by Diwakar et al. (1976) and Griffin et al. (1976), who reported the first computational fluid dynamic results for the two-dimensional flowfield for all four strokes of a reciprocating internal combustion (IC) engine cycle. An analysis of rectangular and cylindrical three-dimensional engine models is performed. The working fluid is assumed to be inviscid air of constant specific heats. Calculations are carried out of a four-stroke IC engine flowfield wherein detailed finite-rate chemical combustion of a gasoline-air mixture is included. The calculations remain basically inviscid, except that in some instances thermal conduction is included to allow a more realistic model of the localized sparking of the mixture. All the results of the investigation are obtained by means of an explicity time-dependent finite-difference technique, using a high-speed digital computer.

  11. ASME Code requirements for multi-canister overpack design and fabrication

    SciTech Connect

    SMITH, K.E.

    1998-11-03

    The baseline requirements for the design and fabrication of the MCO include the application of the technical requirements of the ASME Code, Section III, Subsection NB for containment and Section III, Subsection NG for criticality control. ASME Code administrative requirements, which have not historically been applied at the Hanford site and which have not been required by the US Nuclear Regulatory Commission (NRC) for licensed spent fuel casks/canisters, were not invoked for the MCO. As a result of recommendations made from an ASME Code consultant in response to DNFSB staff concerns regarding ASME Code application, the SNF Project will be making the following modifications: issue an ASME Code Design Specification and Design Report, certified by a Registered Professional Engineer; Require the MCO fabricator to hold ASME Section III or Section VIII, Division 2 accreditation; and Use ASME Authorized Inspectors for MCO fabrication. Incorporation of these modifications will ensure that the MCO is designed and fabricated in accordance with the ASME Code. Code Stamping has not been a requirement at the Hanford site, nor for NRC licensed spent fuel casks/canisters, but will be considered if determined to be economically justified.

  12. 46 CFR 56.01-5 - Adoption of ASME B31.1 for power piping, and other standards.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...false Adoption of ASME B31.1 for power piping, and other standards. 56.01-5...SECURITY (CONTINUED) MARINE ENGINEERING PIPING SYSTEMS AND APPURTENANCES General ...01-5 Adoption of ASME B31.1 for power piping, and other standards....

  13. 46 CFR 56.01-5 - Adoption of ASME B31.1 for power piping, and other standards.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...false Adoption of ASME B31.1 for power piping, and other standards. 56.01-5...SECURITY (CONTINUED) MARINE ENGINEERING PIPING SYSTEMS AND APPURTENANCES General ...01-5 Adoption of ASME B31.1 for power piping, and other standards....

  14. 46 CFR 56.01-5 - Adoption of ASME B31.1 for power piping, and other standards.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...false Adoption of ASME B31.1 for power piping, and other standards. 56.01-5...SECURITY (CONTINUED) MARINE ENGINEERING PIPING SYSTEMS AND APPURTENANCES General ...01-5 Adoption of ASME B31.1 for power piping, and other standards....

  15. 46 CFR 56.01-5 - Adoption of ASME B31.1 for power piping, and other standards.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...false Adoption of ASME B31.1 for power piping, and other standards. 56.01-5...SECURITY (CONTINUED) MARINE ENGINEERING PIPING SYSTEMS AND APPURTENANCES General ...01-5 Adoption of ASME B31.1 for power piping, and other standards....

  16. 46 CFR 56.01-5 - Adoption of ASME B31.1 for power piping, and other standards.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...false Adoption of ASME B31.1 for power piping, and other standards. 56.01-5...SECURITY (CONTINUED) MARINE ENGINEERING PIPING SYSTEMS AND APPURTENANCES General ...01-5 Adoption of ASME B31.1 for power piping, and other standards....

  17. Inhomogeneity of fluid flow in Stirling engine regenerators

    SciTech Connect

    Jones, J.D. (School of Engineering Science, Simon Fraser Univ. Burnaby, British Columbia (CA))

    1989-10-01

    The literature relating to inhomogeneity of flow regenerators is briefly reviewed. It is noted that, in contrast to other applications of regenerators, relatively little attention has been paid to the consequences of flow inhomogeneity for thermal regeneration in Stirling cycle machines. The construction of regenerator capsules for a large stationary Stirling engine is described. A test rig is developed to measure the gas velocity profile across the face of the packed regenerator capsules under steady flow conditions. Measured flow profiles for a number of different matrix materials and construction techniques are presented, and it is noted that stacked-mesh regenerator matrices tend to display marked inhomogeneities of flow. The consequences of flow inhomogeneity for flow friction and regenerator effectiveness are analyzed theoretically, and approximate formulae deduced. One method for reducing flow inhomogeneity in stacked-screen matrice

  18. Mechanical Energy and Power Systems Laboratory Mechanical Energy and Power Systems Laboratory Proceedings of the ASME 2009 International Mechanical Engineering Conference and

    E-print Network

    Van de Ven, James D.

    in the past, re- cent developments in Stirling engine technology utilizing rolling diaphragm seals piston Stirling [2] engine, it was decided that a rolling diaphragm seal could be used to effectively displaced piston in a liquid piston engine utilizing a rolling diaphragm seal. While developing the liquid

  19. Mechanobiology of engineered cartilage cultured under a quantified fluid-dynamic environment

    Microsoft Academic Search

    M. T. Raimondi; F. Boschetti; L. Falcone; G. B. Fiore; A. Remuzzi; E. Marinoni; M. Marazzi; R. Pietrabissa

    2002-01-01

    Natural cartilage remodels both in vivo and in vitro in response to mechanical forces and hence mechanical stimulation is\\u000a believed to have a potential as a tool to modulate extra-cellular matrix synthesis in tissue-engineered cartilage. Fluid-induced\\u000a shear is known to enhance chondrogenesis on animal cells. A well-defined hydrodynamic environment is required to study the\\u000a biochemical response to shear of three-dimensional

  20. Computational fluid dynamics modeling of momentum transport in rotating wall perfused bioreactor for cartilage tissue engineering

    Microsoft Academic Search

    Mahmut N. Cinbiz; R. Seda T??l?; I??l GerÁek Be?karde?; Menem?e GŁmŁ?derelio?lu; ‹ner «olak

    2010-01-01

    In this study, computational fluid dynamics (CFD) analysis of a rotating-wall perfused-vessel (RWPV) bioreactor is performed to characterize the complex hydrodynamic environment for the simulation of cartilage development in RWPV bioreactor in the presence of tissue-engineered cartilage constructs, i.e., cell-chitosan scaffolds. Shear stress exerted on chitosan scaffolds in bioreactor was calculated for different rotational velocities in the range of 33Ė38rpm.

  1. Exciting Students About Science & Engineering ...

    E-print Network

    Evans, Paul G.

    applications include nanomachines, bioimplants, smart materials, fuel cells, genetic engineering and spaceExciting Students About Science & Engineering ... ASM MATERIALS CAMP¬ģ 2013 MATERIALS IN TODAY'S WORLD Materials science and engineering is a study of the relationship between the structure

  2. Fluids

    Microsoft Academic Search

    Malcolm Fisher

    \\u000a It is impossible to imagine daily critical care practice without intravenous fluids, yet as a safe and dependable form of\\u000a treatment, it is a relatively new phenomenon. The need for fluid administration and its importance has been recognized since\\u000a ancient times, but the ancients had no recourse to intravenous administration. Fluids of various kinds, particularly blood,\\u000a have fascinated the medical

  3. The interdisciplinary field of Biomedical Engineering combines elements of engineering (electronics, systems analysis, fluid

    E-print Network

    Rohs, Remo

    (electronics, systems analysis, fluid mechanics) with the life sciences (biology, physiology, biochemistry during any given term, consult the Schedule of Classes. B I O M E D I C A L E N G I N E E R I N G ( B M E Electronics (4, Sp) Electronic design and measurements for medical applica-tions. Use of integrated circuits

  4. Thermal/Fluid Analysis of a Composite Heat Exchanger for Use on the RLV Rocket Engine

    NASA Technical Reports Server (NTRS)

    Nguyen, Dalton; Turner, Larry D. (Technical Monitor)

    2001-01-01

    As part of efforts to design a regeneratively cooled composite nozzle ramp for use on the reusable vehicle (RLV) rocket engine, a C-SiC composite heat exchanger concept was proposed for thermal performance evaluation. To test the feasibility of the concept, sample heat exchanger panels were made to fit the Glenn Research Center's cell 22 for testing. Operation of the heat exchanger was demonstrated in a combustion environment with high heat fluxes similar to the RLV Aerospike Ramp. Test measurements were reviewed and found to be valuable for the on-going fluid and thermal analysis of the actual RLV composite ramp. Since the cooling fluid for the heat exchanger is water while the RLV Ramp cooling fluid is LH2, fluid and therma models were constructed to correlate to the specific test set-up. The knowledge gained from this work will be helpful for analyzing the thermal response of the actual RLV Composite Ramp. The coolant thermal properties for the models are taken from test data. The heat exchanger's cooling performance was analyzed using the Generalized Fluid System Simulation Program (GFSSP). Temperatures of the heat exchanger's structure were predicted in finite element models using Patran and Sinda. Results from the analytical models and the tests show that RSC's heat exchanger satisfied the combustion environments in a series of 16 tests.

  5. Thermal/Fluid Analysis of a Composite Heat Exchanger for Use on the RLV Rocket Engine

    NASA Technical Reports Server (NTRS)

    Nguyen, Dalton

    2002-01-01

    As part of efforts to design a regeneratively cooled composite nozzle ramp for use on the reusable vehicle (RLV) rocket engine, an C-SiC composites heat exchanger concept was proposed for thermal performance evaluation. To test the feasibility of the concept, sample heat exchanger panels were made to fit the Glenn Research Center's cell 22 for testing. Operation of the heat exchanger was demonstrated in a combustion environment with high heat fluxes similar to the RLV Aerospike Ramp. Test measurements were reviewed and found to be valuable for the on going fluid and thermal analysis of the actual RLV composite ramp. Since the cooling fluid for the heat exchanger is water while the RLV Ramp cooling fluid is LH2, fluid and thermal models were constructed to correlate to the specific test set-up. The knowledge gained from this work will be helpful for analyzing the thermal response of the actual RLV Composite Ramp. The coolant thermal properties for the models are taken from test data. The heat exchanger's cooling performance was analyzed using the Generalized Fluid System Simulation Program (GFSSP). Temperatures of the heat exchanger's structure were predicted in finite element models using Patran and Sinda. Results from the analytical models and the tests show that RSC's heat exchanger satisfied the combustion environments in a series of 16 tests.

  6. Neutron imaging of hydrogen-rich fluids in geomaterials and engineered porous media: A review

    NASA Astrophysics Data System (ADS)

    Perfect, E.; Cheng, C.-L.; Kang, M.; Bilheux, H. Z.; Lamanna, J. M.; Gragg, M. J.; Wright, D. M.

    2014-02-01

    Recent advances in visualization technologies are providing new discoveries as well as answering old questions with respect to the phase structure and flow of hydrogen-rich fluids, such as water and oil, within porous media. Magnetic resonance and x-ray imaging are sometimes employed in this context, but are subject to significant limitations. In contrast, neutrons are ideally suited for imaging hydrogen-rich fluids in abiotic non-hydrogenous porous media because they are strongly attenuated by hydrogen and can "see" through the solid matrix in a non-destructive fashion. This review paper provides an overview of the general principles behind the use of neutrons to image hydrogen-rich fluids in both 2-dimensions (radiography) and 3-dimensions (tomography). Engineering standards for the neutron imaging method are examined. The main body of the paper consists of a comprehensive review of the diverse scientific literature on neutron imaging of static and dynamic experiments involving variably-saturated geomaterials (rocks and soils) and engineered porous media (bricks and ceramics, concrete, fuel cells, heat pipes, and porous glass). Finally some emerging areas that offer promising opportunities for future research are discussed.

  7. Computational Fluid Dynamics Analysis Method Developed for Rocket-Based Combined Cycle Engine Inlet

    NASA Technical Reports Server (NTRS)

    1997-01-01

    Renewed interest in hypersonic propulsion systems has led to research programs investigating combined cycle engines that are designed to operate efficiently across the flight regime. The Rocket-Based Combined Cycle Engine is a propulsion system under development at the NASA Lewis Research Center. This engine integrates a high specific impulse, low thrust-to-weight, airbreathing engine with a low-impulse, high thrust-to-weight rocket. From takeoff to Mach 2.5, the engine operates as an air-augmented rocket. At Mach 2.5, the engine becomes a dual-mode ramjet; and beyond Mach 8, the rocket is turned back on. One Rocket-Based Combined Cycle Engine variation known as the "Strut-Jet" concept is being investigated jointly by NASA Lewis, the U.S. Air Force, Gencorp Aerojet, General Applied Science Labs (GASL), and Lockheed Martin Corporation. Work thus far has included wind tunnel experiments and computational fluid dynamics (CFD) investigations with the NPARC code. The CFD method was initiated by modeling the geometry of the Strut-Jet with the GRIDGEN structured grid generator. Grids representing a subscale inlet model and the full-scale demonstrator geometry were constructed. These grids modeled one-half of the symmetric inlet flow path, including the precompression plate, diverter, center duct, side duct, and combustor. After the grid generation, full Navier-Stokes flow simulations were conducted with the NPARC Navier-Stokes code. The Chien low-Reynolds-number k-e turbulence model was employed to simulate the high-speed turbulent flow. Finally, the CFD solutions were postprocessed with a Fortran code. This code provided wall static pressure distributions, pitot pressure distributions, mass flow rates, and internal drag. These results were compared with experimental data from a subscale inlet test for code validation; then they were used to help evaluate the demonstrator engine net thrust.

  8. Numerical simulation and optimization on heat transfer and fluid flow in cooling channel of liquid rocket engine thrust chamber

    Microsoft Academic Search

    Qiuwang Wang; Feng Wu; Min Zeng; Laiqin Luo; Jiguo Sun

    2006-01-01

    Purpose Ė To find the optimal number of channels of rocket engine thrust chamber, it was found that the optimal channel number is 335, at which the cooling effect of the thrust chamber cooling channel reaches the best, which can be helpful to design rocket engine thrust chamber. Design\\/methodology\\/approach Ė The commercial computational fluid dynamics (CFD) software FLUENT with standard

  9. Movement of geothermal fluid in the Cerro Prieto field as determined from well log and reservoir engineering data

    SciTech Connect

    Halfman, S.E.; Lippmann, M.J.; Zelwer, R.

    1982-01-01

    A hydrogeologic model of the Cerro Prieto geothermal field in its undisturbed state, developed on the basis of well log and reservoir engineering data, is discussed. According to this model, geothermal fluid enters the field from the east through a deep (>10,000 ft) sandstone aquifer which is overlain by a thick shale unit which locally prevents the upward migration of the fluid. As it flows westward, the fluid gradually rises through faults and sandy gaps in the shale unit. Eventually, some of the fluid leaks to the surface in the western part of the field, while the rest mixes with surrounding colder waters.

  10. A Computational Fluid Dynamics Study of Cold-flow Analysis for Mixture Preparation In a Motored Four-stroke Direct Injection Engine

    Microsoft Academic Search

    Wendy Hardyono Kurniawan; Shahrir Abdullah; Azhari Shamsudeen

    2007-01-01

    In this study, the Computational Fluid Dynamics (CFD) simulation to investigate the effect of piston crown to the fluid flow field inside the combustion chamber of a four-stroke direct injection automotive engine under the motoring condition is presented. The analysis is focussed on the study of the effect of the piston shape to the fluid flow characteristics. The fluid flow

  11. THIESEL 2010 Conference on Thermo-and Fluid Dynamic Processes in Diesel Engines Influence of Nozzle Geometry on Spray Shape, Particle Size, Spray

    E-print Network

    Paris-Sud XI, Universitť de

    THIESEL 2010 Conference on Thermo- and Fluid Dynamic Processes in Diesel Engines Influence Abstract. Air/fuel mixing process in the combustion chamber of Diesel engines plays an important role on Thermo- and Fluid Dynamic Processes in Diesel Engines, Valencia : Spain (2010)" #12;388 C. Hespel, J. B

  12. Appeared, Proceedings, 17th Intl. Conf. on O shore Mechanics and Arctic Engineering Lisbon, 1998 Under review, Journal of OMAE, ASME.

    E-print Network

    Sweetman, Bert

    FOR FLOATING OCEAN STRUCTURES Steven R. Winterstein Civil and Environmental Engineering Department Stanford loads and responses of ocean structures. While these methods can be used for both #12;xed and oating structures, this paper focuses on applications to oating structures; speci#12;cally, extreme motions of both

  13. Graduate Studies Environmental Fluid Mechanics

    E-print Network

    Jacobs, Laurence J.

    Graduate Studies Environmental Fluid Mechanics and Water Resources Engineering ENVIRONMENTAL FLUID MECHANICS AND WATER RESOURCES ENGINEERING (EFMWR) The environmental fluid mechanics and water resources Environmental Fluid Mechanics and Hydraulic Engineering research focuses on turbulent entrainment, transport

  14. Design of a new engine mount for vertical and horizontal vibration control using magnetorheological fluid

    NASA Astrophysics Data System (ADS)

    Phu, D. X.; Choi, S. B.; Lee, Y. S.; Han, M. S.

    2014-10-01

    This paper presents a new design of a magnetorheological fluid (MR) mount for vibration control considering both vertical forces and horizontal moments such as are met in various engine systems, including a medium high-speed engine of ship. The newly designed mount, called a MR brake mount, offers several salient benefits such as small size and relatively high load capacity compared with a conventional MR engine mount that can control vertical vibration only. The principal design parameters of the proposed mount are optimally determined to achieve maximum torque with geometric and spatial constraints. Subsequently, the proposed MR mount is designed and manufactured based on the optimized design parameters. It is shown from experimental testing that the proposed mount, which combines MR mount with MR brake, can produce the desired force and torque to reduce unwanted vibration of a medium high-speed engine system of ship subjected to both vertical and horizontal exciting motions. In addition, it is verified that there is no large difference between experiment results and simulation results that are obtained from an analytical model derived in this work.

  15. Symposium on ASME codes and recent advances in PVP and valve technology including a survey of operations research methods in engineering

    SciTech Connect

    Fong, J.T.; Hollinger, G.L.; Gowda, B.; Ezekoye, L.I.; Levary, R.R.

    1986-01-01

    This book presents the papers given at a symposium on the design and engineering of reactor pressure vessels, pipes and valves. Topics considered at the symposium included computer-aided fatigue design methods for weldments, the propagation of defects under PWR loading conditions, the fatigue of welded joints in elevated-temperature nuclear components, the design of a bolted flange subjected to severe nuclear system thermal transients, and operations research methods.

  16. A mathematical model for understanding fluid flow through engineered tissues containing microvessels.

    PubMed

    Morin, Kristen T; Lenz, Michelle S; Labat, Caroline A; Tranquillo, Robert T

    2015-05-01

    Knowledge is limited about fluid flow in tissues containing engineered microvessels, which can be substantially different in topology than native capillary networks. A need exists for a computational model that allows for flow through tissues dense in nonpercolating and possibly nonperfusable microvessels to be efficiently evaluated. A finite difference (FD) model based on Poiseuille flow through a distribution of straight tubes acting as point sources and sinks, and Darcy flow through the interstitium, was developed to describe fluid flow through a tissue containing engineered microvessels. Accuracy of the FD model was assessed by comparison to a finite element (FE) model for the case of a single tube. Because the case of interest is a tissue with microvessels aligned with the flow, accuracy was also assessed in depth for a corresponding 2D FD model. The potential utility of the 2D FD model was then explored by correlating metrics of flow through the model tissue to microvessel morphometric properties. The results indicate that the model can predict the density of perfused microvessels based on parameters that can be easily measured. PMID:25424905

  17. 78 FR 37848 - ASME Code Cases Not Approved for Use

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-24

    ...Materials Code Case Acceptability, ASME Section III''; RG...Inspection Code Case Acceptability, ASME Section XI, Division...Maintenance Code Case Acceptability, ASME OM Code...Proposed Rules section of this issue...6-21-13; 8:45 am]...

  18. Computational fluid dynamics modeling of momentum transport in rotating wall perfused bioreactor for cartilage tissue engineering.

    PubMed

    Cinbiz, Mahmut N; T??li, R Seda; Be?karde?, I?il GerÁek; GŁmŁ?derelio?lu, Menem?e; Colak, Uner

    2010-11-01

    In this study, computational fluid dynamics (CFD) analysis of a rotating-wall perfused-vessel (RWPV) bioreactor is performed to characterize the complex hydrodynamic environment for the simulation of cartilage development in RWPV bioreactor in the presence of tissue-engineered cartilage constructs, i.e., cell-chitosan scaffolds. Shear stress exerted on chitosan scaffolds in bioreactor was calculated for different rotational velocities in the range of 33-38 rpm. According to the calculations, the lateral and lower surfaces were exposed to 0.07926-0.11069 dyne/cm(2) and 0.05974-0.08345 dyne/cm(2), respectively, while upper surfaces of constructs were exposed to 0.09196-0.12847 dyne/cm(2). Results validate adequate hydrodynamic environment for scaffolds in RWPV bioreactor for cartilage tissue development which concludes the suitability of operational conditions of RWPV bioreactor. PMID:20887759

  19. Amniotic fluid-derived stem cells as a cell source for bone tissue engineering.

    PubMed

    Rodrigues, MŠrcia T; Lee, Sang Jin; Gomes, Manuela E; Reis, Rui L; Atala, Anthony; Yoo, James J

    2012-12-01

    In tissue engineering, stem cells have become an ideal cell source that can differentiate into most human cell types. Among the stem cells, bone marrow-derived stem cells (BMSCs) have been widely studied, and there is strong evidence that these cells can be differentiated into cells of the osteogenic lineage. Thus, BMSCs have become the gold standard for studies of tissue engineering in orthopedics. However, novel stem cell sources, such as amniotic fluid-derived stem cells (AFSCs) have been identified, and these have important and unique features that may lead to novel and successful applications toward the regeneration of bone tissue. This study was designed to originally compare the osteogenic potential of both BMSCs and AFSCs under distinct culture environments to determine whether the osteogenic differentiation process of both types of stem cells is related to the origin of the cells. Osteogenic differentiation was carried out in both two and three dimensions using a tissue culture plate and by means of seeding the cells onto microfibrous starch and poly(?-caprolactone) scaffolds (a blend of starch and polycaprolactone), respectively. BMSCs and AFSCs were successfully differentiated into the osteogenic cell type, as cells derived from them produced a mineralized extracellular matrix. Nevertheless, the two types of cells presented different expression patterns of bone-related markers as well as different timing of differentiation, indicating that both cell origin and the culture environment have a significant impact on the differentiation into the osteogenic phenotype in AFSCs and BMSCs. PMID:22891759

  20. Interfacing ASM with the MDG Tool

    Microsoft Academic Search

    Amjad Gawanmeh; SofiŤne Tahar; Kirsten Winter

    2003-01-01

    Abstract: In this paper we describe an approach to interface AbstractState Machines (ASM) with Multiway Decision Graphs (MDG) to enabletool support for the formal verication of ASM descriptions. ASMis a specication method for software and hardware providing a powerfulmeans of modeling various kinds of systems. MDGs are decisiondiagrams based on abstract representation of data and are used primarilyfor modeling hardware

  1. Copyright 2010 by ASME1 MASS-SPRING VS. FINITE ELEMENT MODELS OF ANISOTROPIC HEART VALVES

    E-print Network

    Copyright © 2010 by ASME1 MASS-SPRING VS. FINITE ELEMENT MODELS OF ANISOTROPIC HEART VALVES: SPEED, PA, USA (4) Harvard School of Engineering and Applied Sciences Cambridge, MA, USA INTRODUCTION Heat valve dysfunction can lead to heart failure and death, and surgery is the standard treatment. Valve

  2. 1 Copyright 2007 by ASME PREFERENCE INCONSISTENCY IN MULTIDISCIPLINARY DESIGN DECISION MAKING

    E-print Network

    Papalambros, Panos

    ; utility theory; multidisciplinary design; decision making; Kano; discrete choice analysis; conjoint1 Copyright © 2007 by ASME PREFERENCE INCONSISTENCY IN MULTIDISCIPLINARY DESIGN DECISION MAKING-by-case basis when called to make a decision. A common, implicit assumption in engineering design is that user

  3. 1 Copyright 2004 by ASME PHASE-FIELD SIMULATION OF SOLIDIFICATION WITH DENSITY CHANGE

    E-print Network

    Beckermann, Christoph

    @engineering.uiowa.edu ABSTRACT Phase-field models of solidification with convection often assume the existence of a single models [3,6-10]. Some phase-field models of solidification with convection treat the solid phase1 Copyright © 2004 by ASME PHASE-FIELD SIMULATION OF SOLIDIFICATION WITH DENSITY CHANGE Ying Sun

  4. Assoc. Prof. Mem. ASME Mechanical Engineering Department,

    E-print Network

    require materials with low thermal conductivity but good electrical conductivity and Seebeck coefficient difference is maintained between the two ends of the materials as shown in Fig. 1 b , higher thermal energy as the thermal insulation be- tween the hot and the cold sides. A high thermal conductivity causes too much heat

  5. Thermomechanical analysis of freezing-induced cell-fluid-matrix interactions in engineered tissues.

    PubMed

    Han, Bumsoo; Teo, Ka Yaw; Ghosh, Soham; Dutton, J Craig; Grinnell, Frederick

    2013-02-01

    Successful cryopreservation of functional engineered tissues (ETs) is significant to tissue engineering and regenerative medicine, but it is extremely challenging to develop a successful protocol because the effects of cryopreservation parameters on the post-thaw functionality of ETs are not well understood. Particularly, the effects on the microstructure of their extracellular matrix (ECM) have not been well studied, which determines many functional properties of the ETs. In this study, we investigated the effects of two key cryopreservation parameters--(i) freezing temperature and corresponding cooling rate; and (ii) the concentration of cryoprotective agent (CPA) on the ECM microstructure as well as the cellular viability. Using dermal equivalent as a model ET and DMSO as a model CPA, freezing-induced spatiotemporal deformation and post-thaw ECM microstructure of ETs was characterized while varying the freezing temperature and DMSO concentrations. The spatial distribution of cellular viability and the cellular actin cytoskeleton was also examined. The results showed that the tissue dilatation increased significantly with reduced freezing temperature (i.e., rapid freezing). A maximum limit of tissue deformation was observed for preservation of ECM microstructure, cell viability and cell-matrix adhesion. The dilatation decreased with the use of DMSO, and a freezing temperature dependent threshold concentration of DMSO was observed. The threshold DMSO concentration increased with lowering freezing temperature. In addition, an analysis was performed to delineate thermodynamic and mechanical components of freezing-induced tissue deformation. The results are discussed to establish a mechanistic understanding of freezing-induced cell-fluid-matrix interaction and phase change behavior within ETs in order to improve cryopreservation of ETs. PMID:23246556

  6. Qualification of automated techniques for meeting ASME code and NRC requirements. [PWR; BWR

    SciTech Connect

    Cook, J.F.

    1983-01-01

    Nondestructive examinations for nuclear power plants must meet Volume 10, Part 50, Code of Federal Regulation requirements. For Inservice Inspection examinations, these regulations implement the rules of Section XI of the American Society for Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code). Since many of the ASME Code nondestructive examination rules were developed from manual examination practices, they may not apply to automated examinations. Alternate procedures are allowable through use of Code Cases, Nuclear Regulatory Commission Relief Requests, or ASME Code, Section XI, Paragraph IWA-2240 alternative examinations. Documentation of qualification test results for automated techniques is a necessary prerequisite for obtaining approval of alternate procedures. New Code rules are now being developed which will emphasize procedure qualification rather than detailed technique requirements. These qualification requirements should provide more incentive for adopting automated techniques with demonstrated procedure effectiveness.

  7. Engineered micro- and nanoscale diamonds as mobile probes for high-resolution sensing in fluid.

    PubMed

    Andrich, Paolo; AlemŠn, BenjamŪn J; Lee, Jonathan C; Ohno, Kenichi; de las Casas, Charles F; Heremans, F Joseph; Hu, Evelyn L; Awschalom, David D

    2014-09-10

    The nitrogen-vacancy (NV) center in diamond is an attractive platform for quantum information and sensing applications because of its room temperature operation and optical addressability. A major research effort focuses on improving the quantum coherence of this defect in engineered micro- and nanoscale diamond particles (DPs), which could prove useful for high-resolution sensing in fluidic environments. In this work we fabricate cylindrical diamonds particles with finely tuned and highly reproducible sizes (diameter and height ranging from 100 to 700 and 500 nm to 2 ?m, respectively) using high-purity, single-crystal diamond membranes with shallow-doped NV centers. We show that the spin coherence time of the NV centers in these particles exceeds 700 ?s, opening the possibility for the creation of ultrahigh sensitivity micro- and nanoscale sensors. Moreover, these particles can be efficiently transferred into a water suspension and delivered to the region to probe. In particular, we introduce a DP suspension inside a microfluidic circuit and control position and orientation of the particles using an optical trapping apparatus. We demonstrate a DC magnetic sensitivity of 9 ?T/?Hz in fluid as well as long-term trapping stability (>30 h), which paves the way toward the use of high-sensitivity pulse techniques on contactless probes manipulated within biological settings. PMID:25076417

  8. Actuation fluid adapter for hydraulically-actuated electronically-controlled fuel injector and engine using same

    SciTech Connect

    Keyster, Eric S. (Peoria, IL); Merchant, Jack A. (Peoria, IL)

    2002-01-01

    A fuel injector adapter consists of a block defining a pressure communication passage therethrough and an actuation fluid passage. The actuation fluid passage includes three separate branches that open through an outer surface of the block at three separate locations.

  9. Amniotic Fluid-Derived Stem Cells for Cardiovascular Tissue Engineering Applications

    E-print Network

    Petsche Connell, Jennifer

    Recent research has demonstrated that a population of stem cells can be isolated from amniotic fluid removed by amniocentesis that are broadly multipotent and nontumorogenic. These amniotic fluid-derived stem cells (AFSC) ...

  10. Fluid motion within the cylinder of internal combustion engines - The 1986 Freeman Scholar Lecture

    Microsoft Academic Search

    John B. Heywood

    1987-01-01

    The flow field within the cylinder of internal combustion engines is the most important factor controlling the combustion process. Thus it has a major impact on engine operation. This paper reviews those aspects of gas motion into, within, and out of the engine cylinder that govern the combustion characteristics and breathing capabilities of spark-ignition engines and compression-ignition or diesel engines.

  11. Overview of heat transfer and fluid flow problem areas encountered in Stirling engine modeling

    NASA Technical Reports Server (NTRS)

    Tew, Roy C., Jr.

    1988-01-01

    NASA Lewis Research Center has been managing Stirling engine development programs for over a decade. In addition to contractual programs, this work has included in-house engine testing and development of engine computer models. Attempts to validate Stirling engine computer models with test data have demonstrated that engine thermodynamic losses need better characterization. Various Stirling engine thermodynamic losses and efforts that are underway to characterize these losses are discussed.

  12. Overview of heat transfer and fluid flow problem areas encountered in stirling engine modeling

    SciTech Connect

    Tew, R.C. Jr.

    1988-02-01

    NASA Lewis Research Center has been managing Stirling engine development programs for over a decade. In addition to contractual programs, this work has included in-house engine testing and development of engine computer models. Attempts to validate Stirling engine computer models with test data have demonstrated that engine thermodynamic losses need better characterization. Various Stirling engine thermodynamic losses and efforts that are underway to characterize these losses are discussed.

  13. Risk based ASME Code requirements

    SciTech Connect

    Gore, B.F.; Vo, T.V.; Balkey, K.R.

    1992-09-01

    The objective of this ASME Research Task Force is to develop and to apply a methodology for incorporating quantitative risk analysis techniques into the definition of in-service inspection (ISI) programs for a wide range of industrial applications. An additional objective, directed towards the field of nuclear power generation, is ultimately to develop a recommendation for comprehensive revisions to the ISI requirements of Section XI of the ASME Boiler and Pressure Vessel Code. This will require development of a firm technical basis for such requirements, which does not presently exist. Several years of additional research will be required before this can be accomplished. A general methodology suitable for application to any industry has been defined and published. It has recently been refined and further developed during application to the field of nuclear power generation. In the nuclear application probabilistic risk assessment (PRA) techniques and information have been incorporated. With additional analysis, PRA information is used to determine the consequence of a component rupture (increased reactor core damage probability). A procedure has also been recommended for using the resulting quantified risk estimates to determine target component rupture probability values to be maintained by inspection activities. Structural risk and reliability analysis (SRRA) calculations are then used to determine characteristics which an inspection strategy must posess in order to maintain component rupture probabilities below target values. The methodology, results of example applications, and plans for future work are discussed.

  14. System and method for improving performance of a fluid sensor for an internal combustion engine

    DOEpatents

    Kubinski, David (Canton, MI); Zawacki, Garry (Livonia, MI)

    2009-03-03

    A system and method for improving sensor performance of an on-board vehicle sensor, such as an exhaust gas sensor, while sensing a predetermined substance in a fluid flowing through a pipe include a structure for extending into the pipe and having at least one inlet for receiving fluid flowing through the pipe and at least one outlet generally opposite the at least one inlet, wherein the structure redirects substantially all fluid flowing from the at least one inlet to the sensor to provide a representative sample of the fluid to the sensor before returning the fluid through the at least one outlet.

  15. Modelling of a hydraulic engine mount with fluid-structure interaction finite element analysis

    NASA Astrophysics Data System (ADS)

    Shangguan, Wen-Bin; Lu, Zhen-Hua

    2004-08-01

    Hydraulic engine mount (HEM) is now widely used as a highly effective vibration isolator in automotive powertrain. A lumped parameter (LP) model is a traditional model for modelling the dynamic characteristics of HEM, in which the system parameters are usually obtained by experiments. In this paper, a fluid-structure interaction (FSI) finite element analysis (FEA) method and a non-linear FEA technology are used to determine the system parameters, and a fully coupled FSI model is developed for modelling the static and lower-frequency performance of an HEM. A FSI FEA technique is used to estimate the parameters of volumetric compliances, equivalent piston area, inertia and resistance of the fluid in the inertia track and the decoupler of an HEM. A non-linear FEA method is applied to determine the dynamic stiffness of rubber spring of the HEM. The system parameters predicated by FEA are compared favorably with experimental data and/or analytical solutions. A numerical simulation for an HEM with an inertia track and a free decoupler is performed based on the FSI model and the LP model along with the estimated system parameters, and again the simulation results are compared with experimental data. The calculated time histories of some variables in the model, such as the pressure in the upper chamber, the displacement of the free decoupler and the volume flow through the inertia track and the decoupler, under different excitations, elucidate the working mechanism of the HEM. The pressure distribution calculated with the FSI model in the chambers of the HEM validates the assumption that the pressure distribution in the upper and lower chamber is uniform in the LP model. The work conducted in the paper demonstrates that the methods for estimating the system parameters in the LP model and the FSI model for modelling HEM are effective, with which the dynamic characteristic analysis and design optimization of an HEM can be performed before its prototype development, and this can ensure its low cost and high quality for development.

  16. The Engineering Societies & Continuing Education.

    ERIC Educational Resources Information Center

    Professional Engineer, 1979

    1979-01-01

    Gives a description of what the major engineering societies (ASCE, ASME, AICHE, and IEEE) are doing in the area of continuing education. The description includes the short courses, their costs, duration, type and scope of the content. (GA)

  17. Testing of the Engineering Model Electrical Power Control Unit for the Fluids and Combustion Facility

    NASA Technical Reports Server (NTRS)

    Kimnach, Greg L.; Lebron, Ramon C.; Fox, David A.

    1999-01-01

    The John H. Glenn Research Center at Lewis Field (GRC) in Cleveland, OH and the Sundstrand Corporation in Rockford, IL have designed and developed an Engineering Model (EM) Electrical Power Control Unit (EPCU) for the Fluids Combustion Facility, (FCF) experiments to be flown on the International Space Station (ISS). The EPCU will be used as the power interface to the ISS power distribution system for the FCF's space experiments'test and telemetry hardware. Furthermore. it is proposed to be the common power interface for all experiments. The EPCU is a three kilowatt 12OVdc-to-28Vdc converter utilizing three independent Power Converter Units (PCUs), each rated at 1kWe (36Adc @ 28Vdc) which are paralleled and synchronized. Each converter may be fed from one of two ISS power channels. The 28Vdc loads are connected to the EPCU output via 48 solid-state and current-limiting switches, rated at 4Adc each. These switches may be paralleled to supply any given load up to the 108Adc normal operational limit of the paralleled converters. The EPCU was designed in this manner to maximize allocated-power utilization. to shed loads autonomously, to provide fault tolerance. and to provide a flexible power converter and control module to meet various ISS load demands. Tests of the EPCU in the Power Systems Facility testbed at GRC reveal that the overall converted-power efficiency, is approximately 89% with a nominal-input voltage of 12OVdc and a total load in the range of 4O% to 110% rated 28Vdc load. (The PCUs alone have an efficiency of approximately 94.5%). Furthermore, the EM unit passed all flight-qualification level (and beyond) vibration tests, passed ISS EMI (conducted, radiated. and susceptibility) requirements. successfully operated for extended periods in a thermal/vacuum chamber, was integrated with a proto-flight experiment and passed all stability and functional requirements.

  18. Mechanics of granular-frictional-visco-plastic fluids in civil and mining engineering

    NASA Astrophysics Data System (ADS)

    Alehossein, H.; Qin, Z.

    2013-10-01

    The shear stress generated in mine backfill slurries and fresh concrete contains both velocity gradient dependent and frictional terms, categorised as frictional viscous plastic fluids. This paper discusses application of the developed analytical solution for flow rate as a function of pressure and pressure gradient in discs, pipes and cones for such frictional Bingham-Herschel-Bulkley fluids. This paper discusses application of this continuum fluid model to industrial materials like mine and mineral slurries, backfills and fresh concrete tests.

  19. The ASME Code today -- Challenges, threats, opportunities

    SciTech Connect

    Canonico, D.A. [ABB-CE Power Products Manufacturing, Chattanooga, TN (United States)

    1995-12-01

    Since its modest beginning as a single volume in 1914 the ASME Code, or some of its parts, is recognized today in 48 of the United States and all providence`s of Canada. The ASME Code today is composed of 25 books including two Code Case books. These books cover the new construction of boilers and pressure vessels and the new construction and In-Service-Inspection of Nuclear Power Plant components. The ASME accredits all manufacturers of boilers and pressure vessels built to the ASME Code. There are approximately 7650 symbol stamps issued throughout the world. Over 23% of the symbol stamps have been issued outside the USA and Canada. The challenge to the ASME Code is to be accepted as the world standard for pressure boundary components. There are activities underway to achieve that goal. The ASME Code is being revised to make it a more friendly document to entities outside of North America. To achieve that end there are specific tasks underway which are described here.

  20. The ASME news\\/recent research reveals the complex flows in real-life heat exchangers

    Microsoft Academic Search

    Goldberger

    1977-01-01

    A report on the 17th ASME - AIChE National Heat Transfer Conference (Salt Lake City 1977) discusses papers on heat transfer in complex duct flows; the evolution of heat exchanger design techniques; and the topics covered during the sessions, including fusion reactors, cryogenics, thermal storage, process heat transfer, supercritical fluids, reactor transients, geothermal utilization, combustion, non-Newtonian systems, nonequilibrium two-phase phenomena,

  1. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 Pressure Vessels & Piping Division Conference

    E-print Network

    Tijsseling, A.S.

    1 Copyright © 2012 by ASME Proceedings of the ASME 2012 Pressure Vessels & Piping Division - DOUBLE PIPE - ORIFICE SYSTEM Arris S. TIJSSELING Department of Mathematics and Computer Science Eindhoven Acoustic resonance in a two-pipe system is simulated with four different models for the periodic excitation

  2. 1 Copyright 2002 by ASME Proceedings of ASME Turbo Expo 2003

    E-print Network

    M√ľller, Norbert

    1 Copyright © 2002 by ASME Proceedings of ASME Turbo Expo 2003 Power for Land, Sea, and Air June 16­19, 2003, Atlanta, Georgia, USA GT2003-38772 PERFORMANCE IMPROVEMENT OF SMALL GAS TURBINES THROUGH USE Results are presented predicting the significant performance enhancement of two small gas turbines (30 k

  3. Method for optimizing the mechanical output of a fluid pressure free piston engine

    Microsoft Academic Search

    E. W. Dibrell; W. A. Schaich

    1988-01-01

    The method is described for minimizing rotational speed variations of a centrifugal piston expander engine comprising the steps of: (1) supplying a pressured gas to a centrifugal piston expander engine having a rotatable output element and a discharge conduit for cooled exhaust gas; (2) expanding and cooling the pressured gas in the centrifugal piston expander engine to produce cyclically varying

  4. The interdisciplinary field of Biomedical Engineering combines elements of engineering (electronics, systems analysis, fluid mechanics) with the life

    E-print Network

    Rohs, Remo

    (electronics, systems analysis, fluid mechanics) with the life sciences (biology, physiology, biochemistry but are not guaranteed. For the courses offered during any given term, consult the Schedule of Classes. B I O M E D I C COURSES OF INSTRUCTION FLOWCHARTS 302L Medical Electronics (4, Sp) Electronic design and measurements

  5. Are gas velocities in a motored piston engine representative of the pre-ignition fluid motion in a fired engine?

    Microsoft Academic Search

    P. O. Witze; M. J. Hall; M. J. Bennett

    1989-01-01

    Conclusions††The data we have presented comparing mean velocity and turbulence intensity measurements from scavenged and unscavenged engine\\u000a cycles were obtained for two engine speeds, two intake flow configurations, and two locations of the spark plug relative to\\u000a the LDV probe volume. The results show that in some circumstances the gas flow in the hotter unscavenged cycles is significantly\\u000a different from

  6. TOPICAL REVIEW: Overview of the lattice Boltzmann method for nano- and microscale fluid dynamics in materials science and engineering

    NASA Astrophysics Data System (ADS)

    Raabe, D.

    2004-11-01

    The article gives an overview of the lattice Boltzmann method as a powerful technique for the simulation of single and multi-phase flows in complex geometries. Owing to its excellent numerical stability and constitutive versatility it can play an essential role as a simulation tool for understanding advanced materials and processes. Unlike conventional Navier-Stokes solvers, lattice Boltzmann methods consider flows to be composed of a collection of pseudo-particles that are represented by a velocity distribution function. These fluid portions reside and interact on the nodes of a grid. System dynamics and complexity emerge by the repeated application of local rules for the motion, collision and redistribution of these coarse-grained droplets. The lattice Boltzmann method, therefore, is an ideal approach for mesoscale and scale-bridging simulations. It is capable to tackling particularly those problems which are ubiquitous characteristics of flows in the world of materials science and engineering, namely, flows under complicated geometrical boundary conditions, multi-scale flow phenomena, phase transformation in flows, complex solid-liquid interfaces, surface reactions in fluids, liquid-solid flows of colloidal suspensions and turbulence. Since the basic structure of the method is that of a synchronous automaton it is also an ideal platform for realizing combinations with related simulation techniques such as cellular automata or Potts models for crystal growth in a fluid or gas environment. This overview consists of two parts. The first one reviews the philosophy and the formal concepts behind the lattice Boltzmann approach and presents also related pseudo-particle approaches. The second one gives concrete examples in the area of computational materials science and process engineering, such as the prediction of lubrication dynamics in metal forming, dendritic crystal growth under the influence of fluid convection, simulation of metal foam processing, flow percolation in confined geometries, liquid crystal hydrodynamics and processing of polymer blends.

  7. Formal Verification of ASM Designs Using the MDG Tool

    Microsoft Academic Search

    Amjad Gawanmeh; SofiŤne Tahar; Kirsten Winter

    2003-01-01

    Digital systems are becoming very large and complex making the process of nding bugs and design validation in early stages of the design cycle a must. As a contribution towards catching this goal, we propose an approach to interface Abstract State Machines (ASM) with Multiway Decision Graphs (MDG) to enable tool support for the formal verication of ASM descriptions. ASM

  8. Fluid dynamic modeling of a free piston engine with labyrinth seals

    Microsoft Academic Search

    Jaakko Larjola; Juha Honkatukia; Petri Sallinen; Jari Backman

    2010-01-01

    Preliminary design and simulation of a free piston engine suitable for small-scale energy production in distributed energy\\u000a systems is presented in this paper. The properties, particularly the properties of gas seals of the engine are simulated using\\u000a a simulation program developed for this case, and the results are utilized in preliminary main design parameter selection.\\u000a The engine simulation program was

  9. Activated sludge model (ASM) based modelling of membrane bioreactor (MBR) processes: A critical review with special regard to MBR specificities

    Microsoft Academic Search

    A. Fenu; G. Guglielmi; J. Jimenez; M. SpŤrandio; D. Saroj; B. Lesjean; C. Brepols; C. Thoeye; I. Nopens

    2010-01-01

    Membrane bioreactors (MBRs) have been increasingly employed for municipal and industrial wastewater treatment in the last decade. The efforts for modelling of such wastewater treatment systems have always targeted either the biological processes (treatment quality target) as well as the various aspects of engineering (cost effective design and operation). The development of Activated Sludge Models (ASM) was an important evolution

  10. Design your Engineering

    E-print Network

    Barthelat, Francois

    Society of Mechanical Engineers), as well as various campus organizations and sports activities for many extra-curricular activities. Students are involved in such professional societies as CASI (Canadian Aeronautics and Space Institute), SAE (Society of Automotive Engineers), and ASME (American

  11. A Computational Fluid Dynamics Study of Cold-flow Analysis for Mixture Preparation In a Motored Four-stroke Direct Injection Engine

    NASA Astrophysics Data System (ADS)

    Hardyono Kurniawan, Wendy; Abdullah, Shahrir; Shamsudeen, Azhari

    In this study, the Computational Fluid Dynamics (CFD) simulation to investigate the effect of piston crown to the fluid flow field inside the combustion chamber of a four-stroke direct injection automotive engine under the motoring condition is presented. The analysis is focussed on the study of the effect of the piston shape to the fluid flow characteristics. The fluid flow dynamics plays an important role for air-fuel mixture preparation to obtain the better engine combustion, performance and efficiency in the appearance of swirl and tumble flows. These two parameters represents the fluid flow behaviours occurred inside combustion chamber which influences the air streams to the cylinder during intake stroke and enhances greatly the mixing of air and fuel to give a better mixing during compression stroke. The numerical calculations were performed in a single cylinder of 1.6 L of a 4-stroke direct injection engine running at wide open throttle condition by using the CFD code. Two different piston bowls for considered engine speeds of 2000 rpm were considered to be compared to evaluate swirl and tumble flows produced during intake and compression stroke. The results obtained from the numerical analysis can be employed to examine the homogeneity of air-fuel mixture structure for better combustion process and engine performance.

  12. ASM Conference on Prokaryotic Development

    SciTech Connect

    Kaplan, H. B.

    2005-07-13

    Support was provided by DOE for the 2nd ASM Conference on Prokaryotic Development. The final conference program and abstracts book is attached. The conference presentations are organized around topics that are central to the current research areas in prokaryotic development. The program starts with topics that involve relatively simple models systems and ends with systems that are more complex. The topics are: i) the cell cycle, ii) the cytoskeleton, iii) morphogenesis, iv) developmental transcription, v) signaling, vi) multicellularity, and vii) developmental diversity and symbiosis. The best-studied prokaryotic development model systems will be highlighted at the conference through research presentations by leaders in the field. Many of these systems are also model systems of relevance to the DOE mission including carbon sequestration (Bradyrizobium, Synechococcus), energy production (Anabaena, Rhodobacter) and bioremediation (Caulobacter, Mesorhizobium). In addition, many of the highlighted organisms have important practical applications; the actinomycetes and myxobacteria produce antimicrobials that are of commercial interest. It is certain that the cutting-edge science presented at the conference will be applicable to the large group of bacteria relevant to the DOE mission.

  13. Comparisons between measurement and analysis of fluid motion in internal combustion engines

    SciTech Connect

    Witze, P.O. (ed.)

    1981-10-01

    The Engine Combustion Technology Project was created for the purpose of promoting the development of advanced piston engine concepts by the development of techniques to measure, analyze, and understand the combustion process. The technologies emphasized in the project include laser-based measurement techniques and large-scale computer simulations. Considerable progress has already been achieved by project participants in modeling engine air motion, fuel sprays, and engine combustion phenomena. This milestone report covers one part of that progress, summarizing the current capabilities of multi-dimensional computer codes being developed by the project to predict the behavior of turbulent air motion in an engine environment. Computed results are compared directly with experimental data in six different areas of importance to internal combustion engines: (1) Induction-generated ring-vortex structures; (2) Piston-induced vortex roll-up; (3) Behavior of turbulence during compression; (4) Decay of swirling flow during compression; (5) Decay of swirling flow in a constant volume engine simulator; (6) Exhaust-pipe flow. The computational procedures used include vortex dynamics, rapid distortion theory, and finite difference models employing two-equation and subgrid-scale turbulence models. Although the capability does not yet exist to predict the air motion in an engine from its geometric configuration alone, the results presented show that many flowfield sub-processes can be predicted given well-specified initial and boundary conditions.

  14. Analysis of enclosed internal-combustion-engine operation with water as the working fluid. Technical note

    Microsoft Academic Search

    Rein

    1983-01-01

    It is desirable to develop a totally enclosed system that contains an internal combustion engine and all the accessories required to produce at least 480 hp-hr of work. The system must perform underwater without external support and must release nothing but heat to the water. Most prior development has dealt with systems very similar to air breathing engines. Fuel, oxygen

  15. Heat Transfer and Fluid Dynamics Measurements in the Expansion Space of a Stirling Cycle Engine

    NASA Technical Reports Server (NTRS)

    Jiang, Nan; Simon, Terrence W.

    2006-01-01

    The heater (or acceptor) of a Stirling engine, where most of the thermal energy is accepted into the engine by heat transfer, is the hottest part of the engine. Almost as hot is the adjacent expansion space of the engine. In the expansion space, the flow is oscillatory, impinging on a two-dimensional concavely-curved surface. Knowing the heat transfer on the inside surface of the engine head is critical to the engine design for efficiency and reliability. However, the flow in this region is not well understood and support is required to develop the CFD codes needed to design modern Stirling engines of high efficiency and power output. The present project is to experimentally investigate the flow and heat transfer in the heater head region. Flow fields and heat transfer coefficients are measured to characterize the oscillatory flow as well as to supply experimental validation for the CFD Stirling engine design codes. Presented also is a discussion of how these results might be used for heater head and acceptor region design calculations.

  16. Method for optimizing the mechanical output of a fluid pressure free piston engine

    SciTech Connect

    Dibrell, E.W.; Schaich, W.A.

    1988-07-05

    The method is described for minimizing rotational speed variations of a centrifugal piston expander engine comprising the steps of: (1) supplying a pressured gas to a centrifugal piston expander engine having a rotatable output element and a discharge conduit for cooled exhaust gas; (2) expanding and cooling the pressured gas in the centrifugal piston expander engine to produce cyclically varying oppositely directed, positive and negative torques on the rotatable output shaft; (3) driving a rotary load in the positive torque direction by the rotatable output element through one rotatable element of a unidirectional clutch having two rotating elements relatively movable in only the negative torque direction; and (4) connecting a battery operated motor-generator unit to the rotatable output shaft to supplement the rotary speed of the output shaft during periods of negative torque output by the centrifugal piston expander engine and to recharge the battery during periods of maximum positive torque output of the centrifugal expander engine.

  17. Graduate Studies Environmental Fluid Mechanics

    E-print Network

    Storici, Francesca

    Graduate Studies Environmental Fluid Mechanics and Water Resources Engineering GRADUATE COURSESResourcesManagement · IntermediateFluidMechanics · AdvancedFluidMechanics · EnvironmentalFluidMechanics · AdvancedEnvironmental FluidMechanics · FluidMechanicsofOrganisms · OpenChannelHydraulics · SedimentTransport · ComputationalFluidMechanics

  18. Viscous Fluids

    NSDL National Science Digital Library

    Integrated Teaching and Learning Program,

    Students are introduced to the similarities and differences in the behaviors of elastic solids and viscous fluids. Several types of fluid behaviors are describedóBingham plastic, Newtonian, shear thinning and shear thickeningóalong with their respective shear stress vs. rate of shearing strain diagrams. In addition, fluid material properties such as viscosity are introduced, along with the methods that engineers use to determine those physical properties.

  19. A method for certification of FRP piping fabricators for ASME B31.3 systems

    SciTech Connect

    Andersen, K.D. [Fibercast Co., Sand Springs, OK (United States)

    1996-07-01

    Cost-effective FRP piping is often the material of choice for transport of corrosive chemicals. Plant Managers and Engineers have great concern about the integrity of FRP piping joints and the safety of these systems. A specification requirement, in the bid documents, that all fabricators be Certified by the FRP piping manufacturer is a method to promote successful fabrication. A method is proposed, which is in accordance with ASME B31.3 Piping Code, to train and certify fabricators.

  20. Improvement of ASME NH for Grade 91

    SciTech Connect

    Bernard Riou

    2007-10-09

    This report has been prepared in the context of Task 3 of the ASME/DOE Gen IV material project. It has been identified that creep-fatigue evaluation procedures presently available in ASME (1) and RCC-MR (2) have been mainly developed for austenitic stainless steels and may not be suitable for cyclic softening materials such as mod 9 Cr 1 Mo steel (grade 91). The aim of this document is, starting from experimental test results, to perform a review of the procedures and, if necessary, provide recommendations for their improvements.

  1. Mechanical & Aerospace Engineering Department of

    E-print Network

    Roy, Subrata

    Mechanical & Aerospace Engineering Department of Summer 2010 www.mae.ufl.edu #12;2 Chair's Column held our Gator Mechanical & Aerospace Engineering (MAE) get together reception at the annual ASME an unmanned aerial vehicle (UAV) through funding from the Army Corps of Engineers and US Geological Survey

  2. Engineering aspects of a molten salt heat transfer fluid in a trough solar field

    Microsoft Academic Search

    D. Kearney; B. Kelly; U. Herrmann; R. Cable; J. Pacheco; R. Mahoney; H. Price; D. Blake; P. Nava; N. Potrovitza

    2004-01-01

    An evaluation was carried out to investigate the feasibility of utilizing a molten salt as the heat transfer fluid (HTF) and for thermal storage in a parabolic trough solar field to improve system performance and to reduce the levelized electricity cost. The operating large-scale solar parabolic trough plants in the USA currently use a high temperature synthetic oil in the

  3. Department of Mechanical Engineering The Application of Fluid Power to Meet the Needs of Surgical Robotics

    E-print Network

    Wu, Mingshen

    Robotics Devin R. Berg1, Perry Y. Li1, Arthur G. Erdman1, Tianhong Cui1, and Timothy P. Kinney2 1Department of Minnesota, Minneapolis, MN Introduction Robotic surgery promises to produce continued development of a novel fluid powered robotic surgical platform. Unlike current robotic instruments in which a robot

  4. Fluid flow migration study inside geomaterials Research Unit: Sedimentary Geology and Engineering Geology

    E-print Network

    Gent, Universiteit

    Geology Topic: Porous geomaterials, fluid flow, X-ray CT, modelling Context: Many research topics their macroscopical behaviour. The microstructure of a porous medium and the physical characteristics of the solids examples include the production of oil and gas from petroleum bearing reservoirs, the transport

  5. CVEN 489-501 Group Project: Environmental Fluid Mechanics Research and Comparison to Engineering Practice

    Microsoft Academic Search

    Scott A. Socolofsky; Kuang-An Chang

    For this project, teams of two students each will work together to research a topic in environmental fluid mechanics, write a report in a format con sistent with this project description, and prepare a short in-class presentation. Students are fre e to choose their own topics, or they may choose from a list of suggestions. The report may be in

  6. Teaching Computer-Aided Design of Fluid Flow and Heat Transfer Engineering Equipment.

    ERIC Educational Resources Information Center

    Gosman, A. D.; And Others

    1979-01-01

    Describes a teaching program for fluid mechanics and heat transfer which contains both computer aided learning (CAL) and computer aided design (CAD) components and argues that the understanding of the physical and numerical modeling taught in the CAL course is essential to the proper implementation of CAD. (Author/CMV)

  7. Sarah Deisher, Academic Advisor Mechanical Engineering Ambassadors

    E-print Network

    Virginia Tech

    , Energy Harvesting, Robotics, among others ·Independent study credit is available to sophs and juniors Scale Jelly Fish Autonomous Jelly Fish Project #12;American Society of Mechanical Engineers (ASME

  8. Computational thermo-fluid dynamics contributions to advanced gas turbine engine design

    NASA Technical Reports Server (NTRS)

    Graham, R. W.; Adamczyk, J. J.; Rohlik, H. E.

    1984-01-01

    The design practices for the gas turbine are traced throughout history with particular emphasis on the calculational or analytical methods. Three principal components of the gas turbine engine will be considered: namely, the compressor, the combustor and the turbine.

  9. Electrorheological fluids

    SciTech Connect

    Adolf, D.; Anderson, R.; Garino, T.; Halsey, T.C.; Hance, B.; Martin, J.E.; Odinek, J.

    1996-10-01

    An Electrorheological fluid is normally a low-viscosity colloidal suspension, but when an electric field is applied, the fluid undergoes a reversible transition to a solid, being able to support considerable stress without yield. Commercial possibilities for such fluids are enormous, including clutches, brakes, valves,shock absorbers, and stepper motors. However, performance of current fluids is inadequate for many proposed applications. Our goal was to engineer improved fluids by investigating the key technical issues underlying the solid-phase yield stress and the liquid to solid switching time. Our studies focused on field-induced interactions between colloidal particles that lead to solidification, the relation between fluid structure and performance (viscosity, yield stress), and the time evolution of structure in the fluid as the field is switched on or off.

  10. Computational fluid dynamics simulation of the air/suppressant flow in an uncluttered F18 engine nacelle

    SciTech Connect

    Lopez, A.R.; Gritzo, L.A.; Hassan, B.

    1997-06-01

    For the purposes of designing improved Halon-alternative fire suppression strategies for aircraft applications, Computational Fluid Dynamics (CFD) simulations of the air flow, suppressant transport, and air-suppressant mixing within an uncluttered F18 engine nacelle were performed. The release of inert gases from a Solid Propellant Gas Generator (SPGG) was analyzed at two different injection locations in order to understand the effect of injection position on the flow patterns and the mixing of air and suppression agent. An uncluttered engine nacelle was simulated to provide insight into the global flow features as well as to promote comparisons with previous nacelle fire tests and recent water tunnel tests which included little or no clutter. Oxygen concentration levels, fuel/air residence times that would exist if a small fuel leak were present, velocity contours, and streamline patterns are presented inside the engine nacelle. The numerical results show the influence of the gent release location on regions of potential flame extinction due to oxygen inerting and high flame strain. The occurrence of inflow through the exhaust ducts on the aft end of the nacelle is also predicted. As expected, the predicted oxygen concentration levels were consistently higher than the measured levels since a fire was not modeled in this analysis. Despite differences in the conditions of these simulations and the experiments, good agreement was obtained between the CFD predictions and the experimental measurements.

  11. Study of nonlinear processes of a large experimental thermoacoustic-Stirling heat engine by using computational fluid dynamics

    NASA Astrophysics Data System (ADS)

    Yu, G. Y.; Luo, E. C.; Dai, W.; Hu, J. Y.

    2007-10-01

    This article focuses on using computational fluid dynamics (CFD) method to study several important nonlinear phenomenon and processes of a large experimental thermoacoustic-Stirling heat engine. First, the simulated physical model was introduced, and the suitable numerical scheme and algorithm for the time-dependent compressible thermoacoustic system was determined through extensive numerical tests. Then, the simulation results of the entire evolution process of self-excited thermoacoustic oscillation and the acoustical characteristics of pressure and velocity waves were presented and analyzed. Especially, the onset temperature and the saturation process of dynamic pressure were captured by the CFD simulation. In addition, another important nonlinear phenomenon accompanying the acoustic wave, which is the steady mass flow through the traveling-wave loop inside the thermoacoustic engine, was studied. To suppress the steady mass flow numerically, a fan model was adopted in the simulation. Finally, the multidimensional effects of vortex formation in the thermal buffer tube and other components were displayed numerically. Most importantly, a substantial comparison between the simulation and experiments was made, which demonstrated well the validity and powerfulness of the CFD simulation for characterizing several complicated nonlinear phenomenon involved in the self-excited thermoacoustic heat engine.

  12. Title : Numerical investigation of a BFR using OpenFOAM Topic : Fluids and Combustion Engineering

    Microsoft Academic Search

    Christian Andersen; Niels E. L. Nielsen

    2008-01-01

    The opensource CFD (Computational Fluid Dynamics) software package OpenFOAM has been investigated in this projekt. OpenFOAM was evaluated against results obtained from the com- mercial CFD program Fluent. The comparison was conducted using geometry of a BFR (Burner Flow Reactor) as base. The BFR have previously been investigated with particle combustion. OpenFOAM has no solver for particle combustion so the

  13. Copyright 2008 by ASME1 INTRODUCTION

    E-print Network

    Papaharilaou, Yannis

    Copyright © 2008 by ASME1 INTRODUCTION Abdominal aortic aneurysm (AAA) is a localized dilatation OF AN ABDOMINAL AORTIC ANEURYSM FROM 2D MEDICAL IMAGES USING LEVEL SET METHODS Georgios Kossioris (1, 2), Yannis of the aortic wall. Accurate geometric characterization is critical for a reliable patient specific estimate

  14. Engineering Resources

    NSDL National Science Digital Library

    The American Society for Mechanical Engineers (ASME) was founded in 1880 by a small group of leading industrialists, and has grown since that time to include over 120,000 members in over 150 countries. This section of their website brings together a clutch of resources for those seeking to learn about career paths in the field. This page is a great way to get young people thinking about joining this noble profession.

  15. Computational Fluid Dynamics Modeling of a Supersonic Nozzle and Integration into a Variable Cycle Engine Model

    NASA Technical Reports Server (NTRS)

    Connolly, Joseph W.; Friedlander, David; Kopasakis, George

    2014-01-01

    This paper covers the development of an integrated nonlinear dynamic simulation for a variable cycle turbofan engine and nozzle that can be integrated with an overall vehicle Aero-Propulso-Servo-Elastic (APSE) model. A previously developed variable cycle turbofan engine model is used for this study and is enhanced here to include variable guide vanes allowing for operation across the supersonic flight regime. The primary focus of this study is to improve the fidelity of the model's thrust response by replacing the simple choked flow equation convergent-divergent nozzle model with a MacCormack method based quasi-1D model. The dynamic response of the nozzle model using the MacCormack method is verified by comparing it against a model of the nozzle using the conservation element/solution element method. A methodology is also presented for the integration of the MacCormack nozzle model with the variable cycle engine.

  16. Computational Fluid Dynamics Modeling of a Supersonic Nozzle and Integration into a Variable Cycle Engine Model

    NASA Technical Reports Server (NTRS)

    Connolly, Joseph W.; Friedlander, David; Kopasakis, George

    2015-01-01

    This paper covers the development of an integrated nonlinear dynamic simulation for a variable cycle turbofan engine and nozzle that can be integrated with an overall vehicle Aero-Propulso-Servo-Elastic (APSE) model. A previously developed variable cycle turbofan engine model is used for this study and is enhanced here to include variable guide vanes allowing for operation across the supersonic flight regime. The primary focus of this study is to improve the fidelity of the model's thrust response by replacing the simple choked flow equation convergent-divergent nozzle model with a MacCormack method based quasi-1D model. The dynamic response of the nozzle model using the MacCormack method is verified by comparing it against a model of the nozzle using the conservation element/solution element method. A methodology is also presented for the integration of the MacCormack nozzle model with the variable cycle engine.

  17. Computational Fluid Dynamics (CFD) Image of Hyper-X Research Vehicle at Mach 7 with Engine Operating

    NASA Technical Reports Server (NTRS)

    1997-01-01

    This computational fluid dynamics (CFD) image shows the Hyper-X vehicle at a Mach 7 test condition with the engine operating. The solution includes both internal (scramjet engine) and external flow fields, including the interaction between the engine exhaust and vehicle aerodynamics. The image illustrates surface heat transfer on the vehicle surface (red is highest heating) and flowfield contours at local Mach number. The last contour illustrates the engine exhaust plume shape. This solution approach is one method of predicting the vehicle performance, and the best method for determination of vehicle structural, pressure and thermal design loads. The Hyper-X program is an ambitious series of experimental flights to expand the boundaries of high-speed aeronautics and develop new technologies for space access. When the first of three aircraft flies, it will be the first time a non-rocket engine has powered a vehicle in flight at hypersonic speeds--speeds above Mach 5, equivalent to about one mile per second or approximately 3,600 miles per hour at sea level. Hyper-X, the flight vehicle for which is designated as X-43A, is an experimental flight-research program seeking to demonstrate airframe-integrated, 'air-breathing' engine technologies that promise to increase payload capacity for future vehicles, including hypersonic aircraft (faster than Mach 5) and reusable space launchers. This multiyear program is currently underway at NASA Dryden Flight Research Center, Edwards, California. The Hyper-X schedule calls for its first flight later this year (2000). Hyper-X is a joint program, with Dryden sharing responsibility with NASA's Langley Research Center, Hampton, Virginia. Dryden's primary role is to fly three unpiloted X-43A research vehicles to validate engine technologies and hypersonic design tools as well as the hypersonic test facility at Langley. Langley manages the program and leads the technology development effort. The Hyper-X Program seeks to significantly expand the speed boundaries of air-breathing propulsion by being the first aircraft to demonstrate an airframe-integrated, scramjet-powered free flight. Scramjets (supersonic-combustion ramjets) are ramjet engines in which the airflow through the whole engine remains supersonic. Scramjet technology is challenging because only limited testing can be performed in ground facilities. Long duration, full-scale testing requires flight research. Scramjet engines are air-breathing, capturing their oxygen from the atmosphere. Current spacecraft, such as the Space Shuttle, are rocket powered, so they must carry both fuel and oxygen for propulsion. Scramjet technology-based vehicles need to carry only fuel. By eliminating the need to carry oxygen, future hypersonic vehicles will be able to carry heavier payloads. Another unique aspect of the X-43A vehicle is the airframe integration. The body of the vehicle itself forms critical elements of the engine. The forebody acts as part of the intake for airflow and the aft section serves as the nozzle. The X-43A vehicles were manufactured by Micro Craft, Inc., Tullahoma, Tennessee. Orbital Sciences Corporation, Chandler, Arizona, built the Pegasus rocket booster used to launch the X-43 vehicles. For the Dryden research flights, the Pegasus rocket booster and attached X-43 will be air launched by Dryden's B-52 'Mothership.' After release from the B-52, the booster will accelerate the X-43A vehicle to the established test conditions (Mach 7 to 10) at an altitude of approximately 100,000 feet where the X-43 will separate from the booster and fly under its own power and preprogrammed control.

  18. Enhancing Student Learning in Food Engineering Using Computational Fluid Dynamics Simulations

    ERIC Educational Resources Information Center

    Wong, Shin Y.; Connelly, Robin K.; Hartel, Richard W.

    2010-01-01

    The current generation of students coming into food science and engineering programs is very visually oriented from their early experiences. To increase their interest in learning, new and visually appealing teaching materials need to be developed. Two diverse groups of students may be identified based on their math skills. Food science studentsÖ

  19. Numerical Simulation of the Micro-Fluid Dynamics of Jet Engine Acoustic Liners

    Microsoft Academic Search

    Konstantin A. Kurbatskii; Christopher K. W. Tam

    1999-01-01

    Acoustic liners are used for sound absorption inside a jet engine. The liner consists of cavities which are too small for experimental observations. As a result, there is no clear understanding of the liner dissipation mechanisms. In this work, the flow around and inside a typical liner resonator under the excitation of an incident acoustic field in the presence of

  20. 14 CFR 25.1182 - Nacelle areas behind firewalls, and engine pod attaching structures containing flammable fluid...

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...attaching structures containing flammable fluid lines. 25.1182 Section 25.1182...attaching structures containing flammable fluid lines. (a) Each nacelle area immediately...attaching structure containing flammable fluid lines, must meet each requirement...

  1. 14 CFR 25.1182 - Nacelle areas behind firewalls, and engine pod attaching structures containing flammable fluid...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...attaching structures containing flammable fluid lines. 25.1182 Section 25.1182...attaching structures containing flammable fluid lines. (a) Each nacelle area immediately...attaching structure containing flammable fluid lines, must meet each requirement...

  2. 14 CFR 25.1182 - Nacelle areas behind firewalls, and engine pod attaching structures containing flammable fluid...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...attaching structures containing flammable fluid lines. 25.1182 Section 25.1182...attaching structures containing flammable fluid lines. (a) Each nacelle area immediately...attaching structure containing flammable fluid lines, must meet each requirement...

  3. 14 CFR 25.1182 - Nacelle areas behind firewalls, and engine pod attaching structures containing flammable fluid...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...attaching structures containing flammable fluid lines. 25.1182 Section 25.1182...attaching structures containing flammable fluid lines. (a) Each nacelle area immediately...attaching structure containing flammable fluid lines, must meet each requirement...

  4. 14 CFR 25.1182 - Nacelle areas behind firewalls, and engine pod attaching structures containing flammable fluid...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...attaching structures containing flammable fluid lines. 25.1182 Section 25.1182...attaching structures containing flammable fluid lines. (a) Each nacelle area immediately...attaching structure containing flammable fluid lines, must meet each requirement...

  5. A Design-Oriented Approach to the Integration of Thermodynamics, Fluid Mechanics, and Heat Transfer in the Undergraduate Mechanical Engineering Curriculum.

    ERIC Educational Resources Information Center

    Whale, MacMurray D.; Cravalho, Ernest G.

    This paper describes two parallel efforts that attempt to implement a new approach to the teaching of thermal fluids engineering. In one setting, at the Massachusetts Institute of Technology (MIT), the subject matter is integrated into a single year-long subject at the introductory level. In the second setting, at Victoria (British Columbia,Ö

  6. Simulations for Complex Fluid Flow Problems from Berkeley Lab's Center for Computational Sciences and Engineering (CCSE)

    DOE Data Explorer

    The Center for Computational Sciences and Engineering (CCSE) develops and applies advanced computational methodologies to solve large-scale scientific and engineering problems arising in the Department of Energy (DOE) mission areas involving energy, environmental, and industrial technology. The primary focus is in the application of structured-grid finite difference methods on adaptive grid hierarchies for compressible, incompressible, and low Mach number flows. The diverse range of scientific applications that drive the research typically involve a large range of spatial and temporal scales (e.g. turbulent reacting flows) and require the use of extremely large computing hardware, such as the 153,000-core computer, Hopper, at NERSC. The CCSE approach to these problems centers on the development and application of advanced algorithms that exploit known separations in scale; for many of the application areas this results in algorithms are several orders of magnitude more efficient than traditional simulation approaches.

  7. Reciprocating seals: Lubrication and wear resistance. (Latest citations from Fluidex (Fluid Engineering Abstracts) database). Published Search

    SciTech Connect

    Not Available

    1993-10-01

    The bibliography contains citations concerning theoretical and practical analyses of reciprocating seal wear and lubrication. Topics include behavior, friction coefficient, cylinder wear, lubrication film thickness, friction forces, design innovations, lubricating oil viscosity, and wear modeling relative to reciprocating seal frictional wear and lifetime optimization. Applications in piston ring lubrication, internal combustion engines, and vehicle suspension systems are considered. (Contains 250 citations and includes a subject term index and title list.)

  8. Fluid dynamic modeling of a free piston engine with labyrinth seals

    NASA Astrophysics Data System (ADS)

    Larjola, Jaakko; Honkatukia, Juha; Sallinen, Petri; Backman, Jari

    2010-04-01

    Preliminary design and simulation of a free piston engine suitable for small-scale energy production in distributed energy systems is presented in this paper. The properties, particularly the properties of gas seals of the engine are simulated using a simulation program developed for this case, and the results are utilized in preliminary main design parameter selection. The engine simulation program was developed by combining and modifying the source codes of the simulation and calculation programs obtained from Helsinki University of Technology, Tampere University of Technology, and Lappeenranta University of Technology. Because of the contact-free labyrinth seal used in the piston, the efficiency of the motor is lower than the efficiency of a conventional motor with oil lubricated piston rings. On the other hand, the lack of bearing losses, and the lack of losses associated with a crankshaft system and a gearbox, as well as the lack of lubrication oil expenses, compensates this effect. As a net result, this new motor would perform slightly better than the conventional one. Being completely oil-free, it is very environmentally friendly, and its exhaust gases are completely free of oil residuals which are causing problems in normal gas motors.

  9. 1 Copyright 2004 by ASME Proceedings of ASME TURBOEXPO 2004

    E-print Network

    Thole, Karen A.

    Laboratory Turbines Branch WPAFB, OH 45433 ABSTRACT Within a gas turbine engine, the high pressure turbine parameters including Reynolds number, Mach number, pressure ratio, corrected mass flow, gas,Y,Z distance in axial, pitch, and span directions Greek annular flow path solidity, annulusopen AA1-= density

  10. First results of a scientific validation of Swarm ASM data

    NASA Astrophysics Data System (ADS)

    Chulliat, Arnaud; Alken, Patrick; Hulot, Gauthier

    2014-05-01

    The Absolute Scalar Magnetometer (ASM) is an optically pumped helium-4 magnetometer providing scalar measurements of the Earth's magnetic field onboard each of the three Swarm satellites. Its performance (accuracy, noise level, data cleanliness) is expected to be unprecedented among satellite scalar magnetometers. The main function of the ASMs during the Swarm mission will be to calibrate the vector field magnetometers. As part of the commissioning of the ASM instrument, we will compare preliminary ASM data with predictions from various recent geomagnetic models. Special focus will be placed on the DMSP-MAG-1 model, which relies on geomagnetic data from the Defense Meteorological Satellite Program (DMSP) until 2013.

  11. Stable Fluids Alias wavefront

    E-print Network

    Toronto, University of

    disciplines and in engineering. Fluid mechanics is used as the standard math- ematical framework on whichStable Fluids Jos Stam Alias wavefront Abstract Building animation tools for fluid-like motions-based models for fluid flow can greatly assist in creating such tools. Physical models, unlike key frame or pro

  12. ASME code and ratcheting in piping components. Final technical report

    SciTech Connect

    Hassan, T.; Matzen, V.C.

    1999-05-14

    The main objective of this research is to develop an analysis program which can accurately simulate ratcheting in piping components subjected to seismic or other cyclic loads. Ratcheting is defined as the accumulation of deformation in structures and materials with cycles. This phenomenon has been demonstrated to cause failure to piping components (known as ratcheting-fatigue failure) and is yet to be understood clearly. The design and analysis methods in the ASME Boiler and Pressure Vessel Code for ratcheting of piping components are not well accepted by the practicing engineering community. This research project attempts to understand the ratcheting-fatigue failure mechanisms and improve analysis methods for ratcheting predictions. In the first step a state-of-the-art testing facility is developed for quasi-static cyclic and seismic testing of straight and elbow piping components. A systematic testing program to study ratcheting is developed. Some tests have already been performed an d the rest will be completed by summer'99. Significant progress has been made in the area of constitutive modeling. A number of sophisticated constitutive models have been evaluated in terms of their simulations for a broad class of ratcheting responses. From the knowledge gained from this evaluation study two improved models are developed. These models are demonstrated to have promise in simulating ratcheting responses in piping components. Hence, implementation of these improved models in widely used finite element programs, ANSYS and/or ABAQUS, is in progress. Upon achieving improved finite element programs for simulation of ratcheting, the ASME Code provisions for ratcheting of piping components will be reviewed and more rational methods will be suggested. Also, simplified analysis methods will be developed for operability studies of piping components and systems. Some of the future works will be performed under the auspices of the Center for Nuclear Power Plant Structures, Equipment and Piping. Proposals for future funding also will be submitted to different organizations and industries to speed up the progress of the research.

  13. 2014 GRADUATE STUDIES ENVIRONMENTAL FLUID MECHANICS

    E-print Network

    Wang, Yuhang

    2014 GRADUATE STUDIES ENVIRONMENTAL FLUID MECHANICS AND WATER RESOURCES ENGINEERING RESEARCH AREAS SELECTED COURSES FACILITIES The Environmental Fluid Mechanics and Water Resources program at the Georgia; and develop new technologies and tools that benefit engineering practice in fluid mechanics, hydraulics

  14. American Society for Microbiology (ASM) Press

    NSDL National Science Digital Library

    American Society for Microbiology.

    ASM Press, the book publishing division of the American Society for Microbiology, publishes "reference manuals, scholarly monographs, and textbooks in all of the microbiological sciences." Recent releases include Pathology of Emerging Infections; Essential Procedures for Clinical Microbiology; Molecular Biotechnology: Principles & Applications of Recombinant DNA, 2nd Edition; Modification and Editing of RNA; and Escherichia coli O157:H7 and Other Shiga Toxin-Producing E. coli Strain, among others. Descriptions and ordering information are provided at the site.

  15. Effects of freezing-induced cell-fluid-matrix interactions on the cells and extracellular matrix of engineered tissues.

    PubMed

    Teo, Ka Yaw; DeHoyos, Tenok O; Dutton, J Craig; Grinnell, Frederick; Han, Bumsoo

    2011-08-01

    The two most significant challenges for successful cryopreservation of engineered tissues (ETs) are preserving tissue functionality and controlling highly tissue-type dependent preservation outcomes. In order to address these challenges, freezing-induced cell-fluid-matrix interactions should be understood, which determine the post-thaw cell viability and extracellular matrix (ECM) microstructure. However, the current understanding of this tissue-level biophysical interaction is still limited. In this study, freezing-induced cell-fluid-matrix interactions and their impact on the cells and ECM microstructure of ETs were investigated using dermal equivalents as a model ET. The dermal equivalents were constructed by seeding human dermal fibroblasts in type I collagen matrices with varying cell seeding density and collagen concentration. While these dermal equivalents underwent an identical freeze/thaw condition, their spatiotemporal deformation during freezing, post-thaw ECM microstructure, and cellular level cryoresponse were characterized. The results showed that the extent and characteristics of freezing-induced deformation were significantly different among the experimental groups, and the ETs with denser ECM microstructure experienced a larger deformation. The magnitude of the deformation was well correlated to the post-thaw ECM structure, suggesting that the freezing-induced deformation is a good indicator of post-thaw ECM structure. A significant difference in the extent of cellular injury was also noted among the experimental groups, and it depended on the extent of freezing-induced deformation of the ETs and the initial cytoskeleton organization. These results suggest that the cells have been subjected to mechanical insult due to the freezing-induced deformation as well as thermal insult. These findings provide insight on tissue-type dependent cryopreservation outcomes, and can help to design and modify cryopreservation protocols for new types of tissues from a pre-developed cryopreservation protocol. PMID:21549425

  16. Multiscale fluid-structure interaction modelling to determine the mechanical stimulation of bone cells in a tissue engineered scaffold.

    PubMed

    Zhao, Feihu; Vaughan, Ted J; Mcnamara, Laoise M

    2015-04-01

    Recent studies have shown that mechanical stimulation, by means of flow perfusion and mechanical compression (or stretching), enhances osteogenic differentiation of mesenchymal stem cells and bone cells within biomaterial scaffolds in vitro. However, the precise mechanisms by which such stimulation enhances bone regeneration is not yet fully understood. Previous computational studies have sought to characterise the mechanical stimulation on cells within biomaterial scaffolds using either computational fluid dynamics or finite element (FE) approaches. However, the physical environment within a scaffold under perfusion is extremely complex and requires a multiscale and multiphysics approach to study the mechanical stimulation of cells. In this study, we seek to determine the mechanical stimulation of osteoblasts seeded in a biomaterial scaffold under flow perfusion and mechanical compression using multiscale modelling by two-way fluid-structure interaction and FE approaches. The mechanical stimulation, in terms of wall shear stress (WSS) and strain in osteoblasts, is quantified at different locations within the scaffold for cells of different attachment morphologies (attached, bridged). The results show that 75.4†% of scaffold surface has a WSS of 0.1-10†mPa, which indicates the likelihood of bone cell differentiation at these locations. For attached and bridged osteoblasts, the maximum strains are 397 and 177,200†[Formula: see text] [Formula: see text], respectively. Additionally, the results from mechanical compression show that attached cells are more stimulated ([Formula: see text] [Formula: see text]) than bridged cells ([Formula: see text] [Formula: see text]). Such information is important for understanding the biological response of osteoblasts under in vitro stimulation. Finally, a combination of perfusion and compression of a tissue engineering scaffold is suggested for osteogenic differentiation. PMID:24903125

  17. Magnetic Fluids

    NSDL National Science Digital Library

    2014-09-18

    In this fun, engaging activity, students are introduced to a unique type of fluidóferrofluidsówhose shape can be influenced by magnetic fields! Students act as materials engineers and create their own ferrofluids. They are challenged to make magnetic ink out of ferrofluids and test their creations to see if they work. Concurrently, they learn more about magnetism, surfactants and nanotechnology. As they observe fluid properties as a standalone-fluid and under an imposed magnetic field, they come to understand the components of ferrofluids and their functionality.

  18. 1 Copyright 2009 by ASME Proceedings of HT2009

    E-print Network

    Bahrami, Majid

    heat exchanges and chemical reaction, and 3) compact heat exchangers of large capacities at low1 Copyright © 2009 by ASME Proceedings of HT2009 2009 ASME Summer Heat Transfer Conference July 19 INTRODUCTION Transport phenomena in porous media have been the focus of many industrial and academic

  19. Computational fluid dynamics analysis of Space Shuttle main engine multiple plume flows at high-altitude flight conditions

    NASA Technical Reports Server (NTRS)

    Dougherty, N. S.; Holt, J. B.; Liu, B. L.; Johnson, S. L.

    1992-01-01

    Computational fluid dynamics (CFD) analysis is providing verification of Space Shuttle flight performance details and is being applied to Space Shuttle Main Engine Multiple plume interaction flow field definition. Advancements in real-gas CFD methodology that are described have allowed definition of exhaust plume flow details at Mach 3.5 and 107,000 ft. The specific objective includes the estimate of flow properties at oblique shocks between plumes and plume recirculation into the Space Shuttle Orbiter base so that base heating and base pressure can be modeled accurately. The approach utilizes the Rockwell USA Real Gas 3-D Navier-Stokes (USARG3D) Code for the analysis. The code has multi-zonal capability to detail the geometry of the plumes based region and utilizes finite-rate chemistry to compute the plume expansion angle and relevant flow properties at altitude correctly. Through an improved definition of the base recirculation flow properties, heating, and aerodynamic design environments of the Space Shuttle Vehicle can be further updated.

  20. Computational fluid dynamics analysis of Space Shuttle main engine multiple plume flows at high-altitude flight conditions

    NASA Astrophysics Data System (ADS)

    Dougherty, N. S.; Holt, J. B.; Liu, B. L.; Johnson, S. L.

    1992-07-01

    Computational fluid dynamics (CFD) analysis is providing verification of Space Shuttle flight performance details and is being applied to Space Shuttle Main Engine Multiple plume interaction flow field definition. Advancements in real-gas CFD methodology that are described have allowed definition of exhaust plume flow details at Mach 3.5 and 107,000 ft. The specific objective includes the estimate of flow properties at oblique shocks between plumes and plume recirculation into the Space Shuttle Orbiter base so that base heating and base pressure can be modeled accurately. The approach utilizes the Rockwell USA Real Gas 3-D Navier-Stokes (USARG3D) Code for the analysis. The code has multi-zonal capability to detail the geometry of the plumes based region and utilizes finite-rate chemistry to compute the plume expansion angle and relevant flow properties at altitude correctly. Through an improved definition of the base recirculation flow properties, heating, and aerodynamic design environments of the Space Shuttle Vehicle can be further updated.

  1. Importance of ENaC-Mediated Sodium Transport in Alveolar Fluid Clearance Using Genetically-Engineered Mice

    Microsoft Academic Search

    Edith Hummler; Carole PlanŤs

    2010-01-01

    The lung possesses specific transport systems that intra- and extracellularly maintain salt and fluid balance necessary for its function. At birth, the lungs rapidly transform into a fluid (Na+)-absorbing organ to enable efficient gas exchange. Alveolar fluid clearance, which mainly depends on sodium transport in alveolar epithelial cells, is an important mechanism by which excess water in the alveoli is

  2. European Congress on Computational Methods in Applied Sciences and Engineering ECCOMAS Computational Fluid Dynamics Conference 2001-03-29

    E-print Network

    Grant, P. W.

    of non-Newtonian Fluid Mechanics, Department of Computer Science, University of Wales Swansea, Singleton, Institute of Non-Newtonian Fluid Mechanics, Department of Computer Science, University of Wales Swansea Computational Fluid Dynamics Conference 2001-03-29 Swansea, Wales, UK, 4-7 September 2001-03-29 © ECCOMAS

  3. Fluid&ParticulateSystems 424514/2010

    E-print Network

    Zevenhoven, Ron

    Fluid&ParticulateSystems 424514/2010 Fluid&ParticulateSystems √?A424514/2014 Fluid and Particulate and Flow Engineering ron.zevenhoven@abo.fi 4Fluid&ParticulateSystems 424514/2010 Fluid Biskopsgatan 8, FI-20500 √?bo / Turku Finland RoNz 2januari 2014 #12;Fluid&ParticulateSystems 424514/2010 Fluid

  4. Fluid&ParticulateSystems 424514/2010

    E-print Network

    Zevenhoven, Ron

    Fluid&ParticulateSystems 424514/2010 Fluid&ParticulateSystems √?A424514/2014 Fluid and Particulate Zevenhoven √?A Thermal and Flow Engineering ron.zevenhoven@abo.fi 8Fluid&ParticulateSystems 424514/2010 Fluid Str√∂mningsteknik Biskopsgatan 8, FI-20500 √?bo / Turku Finland #12;Fluid&ParticulateSystems 424514/2010 Fluid

  5. Air separation membranes : an alternative to EGR in large bore natural gas engines

    Microsoft Academic Search

    Munidhar Biruduganti; Sreenath Gupta; Bipin Bihari; Steve McConnell; Raj Sekar

    2010-01-01

    Air separation membranes (ASMs) could potentially replace exhaust gas recirculation (EGR) technology in engines due to the proven benefits in NOx reduction but without the drawbacks of EGR. Previous investigations of nitrogen-enriched air (NEA) combustion using nitrogen bottles showed up to 70% NOx reduction with modest 2% nitrogen enrichment. The investigation in this paper was performed with an ASM capable

  6. Toward improved durability in advanced aircraft engine hot sections; Proceedings of the Thirty-third ASME International Gas Turbine and Aeroengine Congress and Exposition, Amsterdam, Netherlands, June 5-9, 1988

    NASA Technical Reports Server (NTRS)

    Sokolowski, Daniel E. (editor)

    1988-01-01

    The present conference on durability improvement methods for advanced aircraft gas turbine hot-section components discusses NASA's 'HOST' project, advanced high-temperature instrumentation for hot-section research, the development and application of combustor aerothermal models, and the evaluation of a data base and numerical model for turbine heat transfer. Also discussed are structural analysis methods for gas turbine hot section components, fatigue life-prediction modeling for turbine hot section materials, and the service life modeling of thermal barrier coatings for aircraft gas turbine engines.

  7. Application of the ASME code in the design of the GA-4 and GA-9 casks

    SciTech Connect

    Mings, W.J. [USDOE Idaho Field Office, Idaho Falls, ID (United States); Koploy, M.A. [General Atomics, San Diego, CA (United States)

    1992-08-01

    General Atomics (GA) is developing two spent fuel shipping casks for transport by legal weight truck (LWT). The casks are designed to the loading, environmental conditions and safety requirements defined in Title 10 of the Code of Federal Regulations, Part 71 (10CFR71). To ensure that all components of the cask meet the 10CFR71 rules, GA established structural design criteria for each component based on NRC Regulatory Guides and the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code). This paper discusses the criteria used for different cask components, how they were applied and the conservatism and safety margins built into the criteria and assumption.

  8. Application of the ASME code in the design of the GA-4 and GA-9 casks

    SciTech Connect

    Mings, W.J. (USDOE Idaho Field Office, Idaho Falls, ID (United States)); Koploy, M.A. (General Atomics, San Diego, CA (United States))

    1992-01-01

    General Atomics (GA) is developing two spent fuel shipping casks for transport by legal weight truck (LWT). The casks are designed to the loading, environmental conditions and safety requirements defined in Title 10 of the Code of Federal Regulations, Part 71 (10CFR71). To ensure that all components of the cask meet the 10CFR71 rules, GA established structural design criteria for each component based on NRC Regulatory Guides and the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code). This paper discusses the criteria used for different cask components, how they were applied and the conservatism and safety margins built into the criteria and assumption.

  9. Start Up Research Effort in Fluid Mechanics. Advanced Methods for Acoustic and Thrust Benefits for Aircraft Engine Nozzle

    NASA Technical Reports Server (NTRS)

    White, Samuel G.; Gilinsky, Mikhail M.

    1997-01-01

    In accordance with the project plan for the report period in the proposal titled above, HU and FML teams investigated two sets of concepts for reduction of noise and improvement in efficiency for jet exhaust nozzles of aircraft engines and screws for mixers, fans, propellers and boats. The main achievements in the report period are: (a) Publication of the paper in the AIAA Journal, which described our concepts and some results. (b) The Award in the Civil Research and Development Foundation (CRDF) competition. This 2 year grant for Hampton University (HU) and Central AeroHydrodynamic Institute (TSAGI, Moscow, Russia) supports the research implementation under the current NASA FAR grant. (c) Selection for funding by NASA HQ review panel of the Partnership Awards Concept Paper. This two year grant also will support our current FAR grant. (d) Publication of a Mobius Strip concept in NASA Technical Briefs, June, 1996, and a great interest of many industrial companies in this invention. Successful experimental results with the Mobius shaped screw for mixers, which save more than 30% of the electric power by comparison with the standard screws. Creation of the scientific-popular video-film which can be used for commercial and educational purposes. (e) Organization work, joint meetings and discussions of the NASA LARC JNL Team and HU professors and administration for the solution of actual problems and effective work of the Fluid Mechanics Laboratory at Hampton University. In this report the main designs are enumerated. It also contains for both concept sets: (1) the statement of the problem for each design, some results, publications, inventions, patents, our vision for continuation of this research, and (2) present and expected problems in the future.

  10. 1 Copyright 2004 by ASME Proceedings of IMECE04

    E-print Network

    M√ľller, Norbert

    of the low energy fluid. While several different configurations of mainly axial-flow wave rotors have been of these arrangements into gas turbine engines are shown and a new rotor speed controlling system is described, too. Keywords: radial wave rotor, comprex, internal combustion wave rotor, shock waves, gas turbine

  11. Fluid delivery control system

    SciTech Connect

    Hoff, Brian D.; Johnson, Kris William; Algrain, Marcelo C.; Akasam, Sivaprasad

    2006-06-06

    A method of controlling the delivery of fluid to an engine includes receiving a fuel flow rate signal. An electric pump is arranged to deliver fluid to the engine. The speed of the electric pump is controlled based on the fuel flow rate signal.

  12. Fluid Power Technician

    ERIC Educational Resources Information Center

    Moore, Pam

    2008-01-01

    Fluid power technicians, sometimes called hydraulic and pneumatic technicians, work with equipment that utilizes the pressure of a liquid or gas in a closed container to transmit, multiply, or control power. Working under the supervision of an engineer or engineering staff, they assemble, install, maintain, and test fluid power equipment.Ö

  13. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical Conferences &

    E-print Network

    Williams II, Robert L.

    point and deformable skin. This Virtual Haptic Human Upper Body (VHHUB) model has realistic human motion, a common diagnostic technique. 1. INTRODUCTION The VHB (Virtual Haptic Back) is one of the current research training in the field of osteopathic medicine, specifically palpatory diagnosis tasks. Haptics devices give

  14. 1 Copyright 2011 by ASME Proceedings of the ASME 2011 International Design Engineering Technical Conferences &

    E-print Network

    Lewis, Kemper E.

    of using Product Archaeology-based educational strategies to facilitate the learning objectives of Outcome, AND SOCIETAL FACTORS IN INTRODUCTORY DESIGN EDUCATION Erich Devendorf Graduate Research Assistant Department Corresponding Author: kelewis@buffalo.edu ABSTRACT Design education has traditionally been incorporated

  15. 1 Copyright 2011 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-print Network

    Krovi, Venkat

    SUBSYSTEMS Leng-Feng Lee Graduate Student Mechanical & Aerospace Eng. SUNY at Buffalo 318 Jarvis Hall, Buffalo NY 14260 E-mail: llee3 @buffalo.edu Web: www.eng.buffalo.edu/~llee3 Xiaobo Zhou Graduate Student Mechanical & Aerospace Eng. SUNY at Buffalo 318 Jarvis Hall, Buffalo NY 14260 E-mail: xzhou9@buffalo

  16. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Mechanical Engineering Congress & Exposition

    E-print Network

    solar radiation is used in trough, furnace, and central tower and dish systems [5≠8]. A valuable-40492 DESIGN OF A NEW 45 kWe HIGH-FLUX SOLAR SIMULATOR FOR HIGH-TEMPERATURE SOLAR THERMAL AND THERMO 55455, USA ABSTRACT In this paper, we present a systematic procedure to design a solar simulator

  17. 1 Copyright 2014 by ASME Proceedings of the ASME 2014 International Design Engineering Technical Conference &

    E-print Network

    Krovi, Venkat

    electronic control and safety-systems, such as Electronic Stability Program, Anti-lock Brake Systems in reliability and safety due to incorporation of intelligent systems such as Anti-lock Braking System (ABS with the INS sensing. This enable to use low-cost and high rate INS-based measurements while noise effects

  18. 1 Copyright 2013 by ASME Proceedings of the ASME 2013 International Design Engineering Technical Conference &

    E-print Network

    +), professional network sites (LinkedIn, Xing), reading blogs (Twitter, WordPress), and writing product reviews (Amazon, Epinions). Since social media has manifested itself to be a powerful tool for marketing

  19. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences

    E-print Network

    Chen, Yong

    accuracy and resolution. Based on the principle of pixel blending, we present a novel AM process by using multiple DMDs to significantly improve the accuracy and resolution of built components. In order to achieve the desired pixel blending result for a given layer, it is critical to plan the mask images that will be used

  20. 1 Copyright 2011 by ASME Proceedings of the ASME 2011 International Design Engineering Technical Conferences

    E-print Network

    Shu, Lily H.

    peoples' motivations for performing environmentally conscious actions. Stern (2000) defined these behaviours as those that reduce the material and energy impact of human activities on the biosphere, Washington, DC, USA DETC2011-48618 ENCOURAGING ENVIRONMENTALLY CONSCIOUS BEHAVIOUR THROUGH PRODUCT DESIGN

  1. 1 Copyright 2013 by ASME Proceedings of the ASME 2013 International Design Engineering Technical Conferences and

    E-print Network

    Yang, Maria

    technology or materials involved in creating the prototype, such as 3D printing or aluminum stock. This paper information, meaning that such prototypes may be made of relatively inexpensive materials and are fast

  2. 1 Copyright 2011 by ASME Proceedings of the ASME 2011 International Design Engineering Technical Conferences &

    E-print Network

    Awtar, Shorya

    been proposed for slender spatial beams with uniform and symmetric cross-sections. By providing closed]. The constraint behavior of a spatial beam is demonstrated in Fig.1. Due to the slenderness of the beam in the Y is relatively high. Given this contrast in stiffness, the slender spatial beam serves as a constraint element

  3. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Mechanical Engineering Congress & Exposition

    E-print Network

    Van de Ven, James D.

    . By varying the ratio of the on-time to the total cycle time, defined as the duty ratio, a variable output OF A HIGH-SPEED ON-OFF VALVE Allan A. Katz Mechanical Energy and Power Systems Lab Worcester Polytechnic of hydraulic circuits enables significant improvements in efficiency compared with throttling valve control

  4. 1 Copyright 2011 by ASME Proceedings of the ASME 2011 International Mechanical Engineering Congress & Exposition

    E-print Network

    Guo, Zhixiong "James"

    , radiant intensity from the sun is absorbed by a solar receiver [1] and converted into thermal energy, Jianfeng et al. [2] performed a numerical study on performance of a receiver pipe under concentrated solar irradiation, and Li et al. [1] performed a detailed analysis of heat transfer processes in a molten

  5. 1 Copyright 2014 by ASME Proceedings of the ASME 2014 International Design Engineering Technical Conferences &

    E-print Network

    Stachel, Hellmuth

    ) lies in the cylindroid and b) is normal to the instant screw axis of one gear with respect to its); spatial Camus' Theorem; Ball-Disteli diagram; osculating ruled surfaces. 1 INTRODUCTION Gears of many

  6. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical Conferences &

    E-print Network

    Shai, Offer

    an innovative structure, such as a deployable tensegrity structure, and suppose that while doing so, we. This paper deals with a situation in which a novel type of structure, adjustable, deployable tensegrity forces in a tensegrity structure thus determining which element would be a strut and which a cable

  7. 1 Copyright 2011 by ASME Proceedings of the 2011 ASME International Mechanical Engineering Congress & Exposition

    E-print Network

    Williams II, Robert L.

    Congress & Exposition IMECE2011 November 11-17, 2011, Denver, Colorado, USA IMECE2011-63534 A BIOMIMETIC ELASTIC CABLE DRIVEN QUADRUPED ROBOT THE ROBOCAT Elvedin Kljuno , J. Jim Zhu , Robert L. Williams II robots, such as the Honda's series of bipedal robots ending in the latest advanced walking robot ASIMO

  8. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 International Mechanical Engineering Congress & Exposition

    E-print Network

    Ramakrishnan, Naren

    for Critical Technology and Applied Science (ICTAS), Virginia Tech, Blacksburg, VA 24061 USA, Tel: 540" (Wall Street Journal, January 30, 2012), Mills and Ottino list three grand technological transformations AND BLACK SWAN TECHNOLOGIES Roop L. Mahajan ICTAS Building, Room 410H, Mail Stop: 0193, Institute

  9. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Design Engineering Technical Conferences &

    E-print Network

    the important role of decision-making in design and brings the strong foundation of decision theory to design, San Diego, California, USA DETC2009-87421 A PROCESS-CENTRIC PROBLEM FORMULATION FOR DECISION of Technology Atlanta, GA 30332 ABSTRACT Although recent work in Decision-Based Design (DBD) recognizes the need

  10. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-print Network

    Awtar, Shorya

    motions are allowed. Since the nominal stiffness in the three in-plane directions (X, Y, Z) is much lower flexures are arranged such that the out-of-plane motions of the Motion Stage are constrained, while in-plane. The constraint characteristics of interest, namely stiffness and error motions, are determined from the non

  11. 1 Copyright 2010 by ASME Proceedings of the ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS & EXPOSITION

    E-print Network

    Giurgiutiu, Victor

    -wall structures, the PWAS are effective guided wave transducers by coupling their in-plane motion with the guided wave particle motion on the material surface. The in-plane PWAS motion is excited by the applied strength and stiffness, when compared to metals, and the ability to shape and tailor their structu

  12. 1 Copyright 2012 by ASME Proceedings of the 2012 ASME International Mechanical Engineering Congress & Exposition

    E-print Network

    was treated with the Masson's trichrome staining treatment and the other with the Hematoxylin and Eosin (H images, many different sample preparation (staining) techniques have been utilized in the field. Two

  13. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 International Design Engineering Technical Conferences &

    E-print Network

    Williams II, Robert L.

    DETC2012-70293 DYNAMICS AND CONTROL OF THE ROBOTIC LUMBAR SPINE (RLS) Ernur Karadogan, Ph.D. Research Spine (RLS). The RLS is a 15 degree-of- freedom, fully cable-actuated robotic lumbar spine which can mimic in vivo human lumbar spine movements to provide better hands-on training for medical students

  14. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-print Network

    Williams II, Robert L.

    , Quebec, Canada DETC2010-28863 A CABLE-ACTUATED ROBOTIC LUMBAR SPINE FOR PALPATORY TRAINING OF MEDICAL cable-actuated robotic lumbar spine (RLS) which can mimic in vivo human lumbar spine movements vertebrae between the first lumbar vertebra and the sacrum, with dimensions of an average adult human spine

  15. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences &

    E-print Network

    Michalek, Jeremy J.

    total battery capacity. 1. INTRODUCTION Plug-in hybrid electric vehicle (PHEV) technology has been-in hybrid electric vehicle (PHEV) technology has the potential to help address economic, environmental on vehicle design, battery technology, and charging frequency. To examine these implications, we develop

  16. 1 Copyright 2011 by ASME Proceedings of the ASME 2011 International Design Engineering Technical Conferences &

    E-print Network

    Sandborn, Peter

    management realities, logistical restrictions, budget ceilings and management policy. In this paper], such as mobile phones and laptop computers. In some systems, the "components" are laptop computers, operating. Obsolescence is a significant problem for systems whose operational and support life is much longer than

  17. 1 Copyright 2010 by ASME Proceedings of the ASME International Mechanical Engineering Congress & Exposition

    E-print Network

    Bahrami, Majid

    , Pa = Dimensionless contact pressure = Heat transfer rate, W = Fiber mean radius, m = Effective radius, reaction kinetics, transport properties, rate of phase change, relative humidity, and membrane water Simon Fraser University mbahrami@sfu.ca ABSTRACT Heat transfer through the gas diffusion layer (GDL

  18. Relaxation Methods Applied to Engineering Problems. VII. Problems Relating to the Percolation of Fluids through Porous Materials

    Microsoft Academic Search

    F. S. Shaw; R. V. Southwell

    1941-01-01

    The accepted theory of percolation of fluids through porous materials (which is based on Darcy's law of resistance) indicates that the velocities can be calculated from a velocity-potential which, in two-dimensional motion, is plane-harmonic within the fluid field. The associated stream function, and the fluid pressure, are also plane-harmonic, so in cases where all boundaries are known their determination is

  19. Hydrogen/Oxygen Propellant Densifier Thermoacoustic Stirling Heat Engine

    NASA Astrophysics Data System (ADS)

    Nguyen, C. T.; Yeckley, A. J.; Schieb, D. J.; Haberbusch, M. S.

    2004-06-01

    A unique, patent pending, thermoacoustic propellant densifier for the simultaneous densification of hydrogen and oxygen propellants for aerospace vehicles is introduced. The densifier uses a high-pressure amplitude, low-frequency Thermoacoustic Stirling Heat Engine (TASHE) coupled with a uniquely designed half-wave-length resonator to drive a pulse tube cryocooler using a Gas Helium (GHe) working fluid. The extremely reliable TASHE has no moving parts, is water cooled, and is electrically powered. The helium-filled TASHE is designed to ASME piping codes, which enables the safe inspection of the system while in operation. The resonator is designed to eliminate higher-order harmonics with minimal acoustic losses. A system description will be presented, and experimental data on both the TASHE and the resonator will be compared with analytical results.

  20. A Investigation of Fluid Flow during Induction Stroke of a Water Analog Model of AN IC Engine Using AN Innovative Optical Velocimetry Concept: Lipa.

    NASA Astrophysics Data System (ADS)

    Stier, Bernd

    Optical measurements on an axisymmetrical quartz component engine research model were made to evaluate the flow field encountered during induction. The measurement technique is LIPA (Laser Induced Photochemical Anemometry), a non-intrusive velocimetry concept that provides an investigator of fluid flow with a tool to attain planar information about three-dimensional velocity and vorticity vectors in a single measurement step. The goal of this investigation is to further develop this measurement technique and apply it to study the induction stroke of a water analog model of a four-stroke internal combustion engine. The research conducted in the water analog model is a fundamental scientific inquiry into the flow fields that develop in the induction stroke of an engine at idling engine speeds. As this is the first investigation of its kind using LIPA technique, our goal has been to quantify, in a preliminary manner, the flow field features that develop during the intake stroke. In the process a more comprehensive understanding of the flow field features was developed, and tied to the quantifications. The study evaluated the flow field of the intake stroke by estimating fields of velocity and vorticity. On the basis of these data, information about fluid dynamics during induction at engine speeds of 10, 20, and 30 RPM (corresponding to 170, 340, and 510 RPM respectively, when air is the flowing medium) for three different valve lifts was obtained. The overall development of the flow field, its energy content (kinetic, fluctuation) for the different settings of the engine parameters, vorticity information, and cyclic variations have been quantified. These have been discussed in terms of mixing performance.

  1. An investigation of fluid flow during induction stroke of a water analog model of an IC engine using an innovative optical velocimetry concept: LIPA

    NASA Astrophysics Data System (ADS)

    Stier, Bernd; Falco, R. E.

    1994-08-01

    Optical measurements on an axisymmetrical quartz component engine research model were made to evaluate the flow field encountered during induction. The measurement technique is LIPA (Laser Induced Photochemical Anemometry), a non-intrusive velocimetry concept that provides an investigator of fluid flow with a tool to attain planar information about three-dimensional velocity and vorticity vectors in a single measurement step. The goal of this investigation is to further develop this measurement technique and apply it to study the induction stroke of a water analog model of a four-stroke internal combustion engine. The research conducted in the water analog model is a fundamental scientific inquiry into the flow fields that develop in the induction stroke of an engine at idling engine speeds. As this is the first investigation of its kind using LIPA technique, our goal has been to quantify, in a preliminary manner, the flow field features that develop during the intake stroke. In the process a more comprehensive understanding of the flow field features was developed, and tied to the quantification. The study evaluated the flow field of the intake stroke by estimating fields of velocity and vorticity. On the basis of these data, information about fluid dynamics during induction at engine speeds of 10, 20, and 30 RPM (corresponding to 170, 340, and 510 RPM respectively, when air is the flowing medium) for three different valve lifts was obtained. The overall development of the flow field, its energy content (kinetic, fluctuation) for the different settings of the engine parameters, vorticity information, and cyclic variations have been quantified. These have been discussed in terms of mixing performance.

  2. An investigation of fluid flow during induction stroke of a water analog model of an IC engine using an innovative optical velocimetry concept: LIPA

    NASA Technical Reports Server (NTRS)

    Stier, Bernd; Falco, R. E.

    1994-01-01

    Optical measurements on an axisymmetrical quartz component engine research model were made to evaluate the flow field encountered during induction. The measurement technique is LIPA (Laser Induced Photochemical Anemometry), a non-intrusive velocimetry concept that provides an investigator of fluid flow with a tool to attain planar information about three-dimensional velocity and vorticity vectors in a single measurement step. The goal of this investigation is to further develop this measurement technique and apply it to study the induction stroke of a water analog model of a four-stroke internal combustion engine. The research conducted in the water analog model is a fundamental scientific inquiry into the flow fields that develop in the induction stroke of an engine at idling engine speeds. As this is the first investigation of its kind using LIPA technique, our goal has been to quantify, in a preliminary manner, the flow field features that develop during the intake stroke. In the process a more comprehensive understanding of the flow field features was developed, and tied to the quantification. The study evaluated the flow field of the intake stroke by estimating fields of velocity and vorticity. On the basis of these data, information about fluid dynamics during induction at engine speeds of 10, 20, and 30 RPM (corresponding to 170, 340, and 510 RPM respectively, when air is the flowing medium) for three different valve lifts was obtained. The overall development of the flow field, its energy content (kinetic, fluctuation) for the different settings of the engine parameters, vorticity information, and cyclic variations have been quantified. These have been discussed in terms of mixing performance.

  3. The First ASME Code Stamped Cryomodule at SNS

    SciTech Connect

    Howell, M P; Crofford, M T; Douglas, D L; Kim, S -H; Steward, S T; Strong, W H; Afanador, R; Hannah, B S; Saunders, J

    2012-07-01

    The first spare cryomodule for the Spallation Neutron Source (SNS) has been designed, fabricated, and tested by SNS personnel. The approach to design for this cryomodule was to hold critical design features identical to the original design such as bayonet positions, coupler positions, cold mass assembly, and overall footprint. However, this is the first SNS cryomodule that meets the pressure requirements put forth in the 10 CFR 851: Worker Safety and Health Program. The most significant difference is that Section VIII of the ASME Boiler and Pressure Vessel Code was applied to the vacuum vessel of this cryomodule. Applying the pressure code to the helium vessels within the cryomodule was considered. However, it was determined to be schedule prohibitive because it required a code case for materials that are not currently covered by the code. Good engineering practice was applied to the internal components to verify the quality and integrity of the entire cryomodule. The design of the cryomodule, fabrication effort, and cryogenic test results will be reported in this paper.

  4. Fluid&ParticulateSystems 424514/2010

    E-print Network

    Zevenhoven, Ron

    Fluid&ParticulateSystems 424514/2010 Fluid&ParticulateSystems √?A424514/2014 Fluid and Particulate Engineering ron.zevenhoven@abo.fi 3Fluid&ParticulateSystems 424514/2010 Fluid&ParticulateSystems √?A424514 Str√∂mningsteknik Biskopsgatan 8, FI-20500 √?bo / Turku Finland RoNz 2januari 2014 #12;Fluid

  5. Fluid Dynamics Seminar Fluid Dynamics Research Centre

    E-print Network

    Thomas, Peter J.

    Effects Prof. Ismet Gursul (Department of Mechanical Engineering, University of Bath) 12 th Mar. (approxFluid Dynamics Seminar Fluid Dynamics Research Centre University of Warwick Spring Term 2008 Unless. Anthony Kay (School of Mathematics, University of Loughborough) 6 th Feb. How Cyclones Form in Rotating

  6. Fluid Dynamics Seminar Fluid Dynamics Research Centre

    E-print Network

    Thomas, Peter J.

    Effects Prof. Ismet Gursul (Department of Mechanical Engineering, University of Bath) 12th Mar. (approx. 2Fluid Dynamics Seminar Fluid Dynamics Research Centre University of Warwick Spring Term 2008 Unless. Anthony Kay (School of Mathematics, University of Loughborough) 6th Feb. How Cyclones Form in Rotating

  7. IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, VOL. 54, NO. 2, FEBRUARY 2007 291 Cerebrospinal Fluid Flow in the Normal and

    E-print Network

    Linninger, Andreas A.

    . This paper presents a detailed analysis of pulsatile CSF flow and pressure dynamics in a normal and pathological conditions of communicating hydrocephalus. This paper predicts small transmantle pressure, computational fluid dy- namics, human brain, hydrocephalus, intracranial pressure, reconstruction tools. I

  8. Fluid and solute shifts across the peritoneal membrane

    E-print Network

    Van Riper, Donald Charles

    1964-01-01

    FLUID AND SOLUTE SHIFTS ACROSS THE PERITONEAL MEMBRANE A Thesis By DONALD CHARLES VAN RIPER Submitted to the Graduate College of the Texas ASM University in partial fulfillment of the requirements for the degree of MASTER OP SCIENCE August... 1964 Ma] or Subj ect: Laboratory Animal Medicine FLUID AND SOLUTE SHIFTS ACROSS THE PERITONEAL MEMBRANE A Thesis DONALD CHARLES VAN RIPER Approved as to style and content by: hairman of Committe ( g ember) (Member) (Member) (Member...

  9. Stable Fluids Jos Stam \\Lambda

    E-print Network

    Toronto, University of

    importance in most scientific disciplines and in engineering. Fluid mechanics is used as the standard mathStable Fluids Jos Stam \\Lambda Alias wavefront Abstract Building animation tools for fluid of physics≠based models for fluid flow can greatly assist in creating such tools. Physical models, unlike key

  10. Fluid Mechanics and Homeland Security

    E-print Network

    Settles, Gary S.

    Fluid Mechanics and Homeland Security Gary S. Settles Mechanical and Nuclear Engineering Department. 2006. 38:87­110 The Annual Review of Fluid Mechanics is online at fluid.annualreviews.org doi: 10 security involves many applications of fluid mechanics and offers many opportunities for research

  11. Harmonic engine

    Microsoft Academic Search

    Charles L

    2009-01-01

    A high efficiency harmonic engine based on a resonantly reciprocating piston expander that extracts work from heat and pressurizes working fluid in a reciprocating piston compressor. The engine preferably includes harmonic oscillator valves capable of oscillating at a resonant frequency for controlling the flow of working fluid into and out of the expander, and also preferably includes a shunt line

  12. MECHANICAL ENGINEERING SENIOR WINS FIRST PLACE IN INTERNATIONAL COMPETITION

    E-print Network

    Holsinger, Kent

    MECHANICAL ENGINEERING SENIOR WINS FIRST PLACE IN INTERNATIONAL COMPETITION 2009-2010 Mechanical. The competition took place at the 2010 ASME International Mechanical Engineering Congress and Exposition is granted to the Mechanical Engineering design team that most successfully applies fundamental Mechanical

  13. Mehrdad Negahban, Associate Chair for Graduate Studies and Research Mechanical Engineering, Engineering Mechanics, Materials Engineering, Biomedical Engineering

    E-print Network

    Farritor, Shane

    Mehrdad Negahban, Associate Chair for Graduate Studies and Research #12;Mechanical Engineering, Engineering Mechanics, Materials Engineering, Biomedical Engineering The graduate program in Mechanical ≠ Dynamics and Vibrations ≠ Fluid Mechanics ≠ Manufacturing ≠ Materials Engineering ≠ Solid Mechanics

  14. Numerical methods for fluid transient analysis; Proceedings of the Applied Mechanics, Bioengineering, and Fluids Engineering Conference, Houston, TX, June 20-22, 1983

    NASA Astrophysics Data System (ADS)

    Martin, C. S.; Chaudhry, M. H.

    Among the topics discussed are implicit methods for the solution of the one-dimensional wave equation, second-order explicit methods for transient flow analysis, a generalized implicit finite difference method for transient analysis of compressible and incompressible fluid flows, the modeling of transient two-component flow with a four-point implicit method, one-dimensional transient gas flow with internal heating, transient pressure wave radial and axial variations, and vaporous and gaseous cavitation simulation. Also discussed are variable celerity modeling by the method of characteristics, a numerical model for transients in petroleum product pipelines, solid-liquid-gas mixture one-dimensional transient flows, hydraulic transients in tunnels with concurrent open channel and pressurized flow, and waterhammer transient control with dynamic programming of valve stoking. For individual items see A84-13235 to A84-13238

  15. A study on vortex flow control on inlet distortion in the re-engined 727-100 center inlet duct using computational fluid dynamics

    NASA Technical Reports Server (NTRS)

    Anderson, Bernhard H.; Huang, Pao S.; Paschal, William A.; Cavatorta, Enrico

    1992-01-01

    Computational fluid dynamics was used to investigate the management of inlet distortion by the introduction of discrete vorticity sources at selected locations in the inlet for the purpose of controlling secondary flow. These sources of vorticity were introduced by means of vortex generators. A series of design observations were made concerning the importance of various vortex generator design parameters in minimizing engine face circumferential distortion. The study showed that vortex strength, generator scale, and secondary flow field structure have a complicated and interrelated influence on the engine face distortion, over and above the initial geometry and arrangement of the generators. The installed vortex generator performance was found to be a function of three categories of variables: the inflow conditions, the aerodynamic characteristics associated with the inlet duct, and the design parameters related to the geometry, arrangement, and placement of the vortex generators within the outlet duct itself.

  16. Comparison of Hydrodynamic Load Predictions Between Engineering Models and Computational Fluid Dynamics for the OC4-DeepCwind Semi-Submersible: Preprint

    SciTech Connect

    Benitz, M. A.; Schmidt, D. P.; Lackner, M. A.; Stewart, G. M.; Jonkman, J.; Robertson, A.

    2014-09-01

    Hydrodynamic loads on the platforms of floating offshore wind turbines are often predicted with computer-aided engineering tools that employ Morison's equation and/or potential-flow theory. This work compares results from one such tool, FAST, NREL's wind turbine computer-aided engineering tool, and the computational fluid dynamics package, OpenFOAM, for the OC4-DeepCwind semi-submersible analyzed in the International Energy Agency Wind Task 30 project. Load predictions from HydroDyn, the offshore hydrodynamics module of FAST, are compared with high-fidelity results from OpenFOAM. HydroDyn uses a combination of Morison's equations and potential flow to predict the hydrodynamic forces on the structure. The implications of the assumptions in HydroDyn are evaluated based on this code-to-code comparison.

  17. A quantum-mechanical heat engine operating in finite time. A model consisting of spin-1/2 systems as the working fluid

    NASA Astrophysics Data System (ADS)

    Geva, Eitan; Kosloff, Ronnie

    1992-02-01

    The finite-time operation of a quantum-mechanical heat engine with a working fluid consisting of many noninteracting spin-1/2 systems is considered. The engine is driven by an external, time-dependent and nonrotating magnetic field. The cycle of operation consists of two adiabats and two isotherms. The analysis is based on the time derivatives of the first and second laws of thermodynamics. Explicit relations linking quantum observables to thermodynamic quantities are developed. The irreversible operation of this engine is studied in three cases: (1) The sudden limit, where the performance is found to be the same as that of the spin analog of the Otto cycle. This case provides the lower bound of efficiency. (2) The step-cycle operation scheme. Here, the optimization of power is carried out in the high-temperature limit (the ``classical'' limit). The results obtained are similar to those of Andresen et al. [Phys. Rev. A 15, 2086 (1977)]. (3) The Curzon-Ahlborn operation scheme. The semigroup approach is used to model the dynamics. Then the power production is optimized. All the results obtained for Newtonian engines operating by the same scheme, such as the Curzon-Ahlborn efficiency, apply in the high-temperature limit. These results are obtained without the additional assumption of proximity to thermal equilibrium, implicitly implied by the use of Newtonian heat conduction in the original derivation. It seems that the results of the Curzon-Ahlborn analysis are always obtained in the high-temperature limit, irrespective of the details of the model. The performance beyond the classical limit is optimized numerically. The classical approximation is found to be valid for most of the spin-polarization range. The deviations from the classical limit depend heavily upon the specific nature of both the working fluid and the heat baths and exhibit great diversity and complexity.

  18. Magnetically stimulated fluid flow patterns

    ScienceCinema

    Martin, Jim; Solis, Kyle

    2014-08-06

    Sandia National Laboratories' Jim Martin and Kyle Solis explain research on the effects of magnetic fields on fluid flows and how they stimulate vigorous flows. Fluid flow is a necessary phenomenon in everything from reactors to cooling engines in cars.

  19. Magnetically stimulated fluid flow patterns

    SciTech Connect

    Martin, Jim; Solis, Kyle

    2014-03-06

    Sandia National Laboratories' Jim Martin and Kyle Solis explain research on the effects of magnetic fields on fluid flows and how they stimulate vigorous flows. Fluid flow is a necessary phenomenon in everything from reactors to cooling engines in cars.

  20. Fundamentals of fluid lubrication

    NASA Technical Reports Server (NTRS)

    Hamrock, Bernard J.

    1991-01-01

    The aim is to coordinate the topics of design, engineering dynamics, and fluid dynamics in order to aid researchers in the area of fluid film lubrication. The lubrication principles that are covered can serve as a basis for the engineering design of machine elements. The fundamentals of fluid film lubrication are presented clearly so that students that use the book will have confidence in their ability to apply these principles to a wide range of lubrication situations. Some guidance on applying these fundamentals to the solution of engineering problems is also provided.

  1. Importance of ENaC-mediated sodium transport in alveolar fluid clearance using genetically-engineered mice.

    PubMed

    Hummler, Edith; PlanŤs, Carole

    2010-01-01

    The lung possesses specific transport systems that intra- and extracellularly maintain salt and fluid balance necessary for its function. At birth, the lungs rapidly transform into a fluid (Na(+))-absorbing organ to enable efficient gas exchange. Alveolar fluid clearance, which mainly depends on sodium transport in alveolar epithelial cells, is an important mechanism by which excess water in the alveoli is reabsorbed during the resolution of pulmonary edema. In this review, we will focus and summarize on the role of ENaC in alveolar lung liquid clearance and discuss recent data from mouse models with altered activity of epithelial sodium channel function in the lung, and more specifically in alveolar fluid clearance. Recent data studying mice with hyperactivity of ENaC or mice with reduced ENaC activity clearly illustrate the impaired lung fluid clearance in these adult mice. Further understanding of the physiological role of ENaC and its regulatory proteins implicated in salt and water balance in the alveolar cells may therefore help to develop new therapeutic strategies to improve gas exchange in pulmonary edema. PMID:20054145

  2. 1 Copyright 2010 by ASME Proceedings of the 8th international conference on Nanochannels, Microchannels and Minichannels

    E-print Network

    Bahrami, Majid

    . Akbari Mechatronic System Engineering School of Engineering Science, Simon Fraser University, Surrey, BC, V3T 0A3, Canada. M. Bahrami Mechatronic System Engineering School of Engineering Science, Simon, Microchannels and Minichannels and 3rd joint US-European Fluids Engineering Summer meeting August 1-5, 2010

  3. Proceedings of IMECE2004 2004 ASME International Mechanical Engineering Congress

    E-print Network

    Bobrow, James E.

    , California, USA, November 13-19, 2004 IMECE2004-59472 HUMAN STEP REHABILITATION USING A ROBOT ATTACHED pelvic motion during human step training on a treadmill. The robot, PAM, (Pelvic Assist manipulator) uses's legs in a gait-like pattern by driving two foot plates connected to a double crank and rocker system

  4. Proceedings of IMECE04 2004 ASME International Mechanical Engineering Congress

    E-print Network

    Motta, Arthur T.

    as coolant to remove the heat from the core and produce power. The fuel cladding has the functions, and a mechanistic understanding of the influence of the role of the various alloying elements and microstructures, decreasing fuel failures and increasing the overall residence time (and thus the overall energy produced

  5. Proceedings of DETC'99 1999 ASME Design Engineering Technical Conferences

    E-print Network

    Dupont, Pierre

    arrays of line attachments. The dispersions of these Floquet waves, and in particular the imagi- nary in the wavenumber domain with the first (r -1) arrays attached (equation 14). Zr Line impedance looking into the rth to these, a broad class of circular structures exist, such as brake rotors and gas turbines, that have one

  6. Proceedings of DETC 2005 2005 ASME Design Engineering Technical Conferences

    E-print Network

    Rand, Richard H.

    connected to the brain, especially to the pineal gland, which is here represented by a third van der Pol the two eyes, they are both connected to the brain, especially to the pineal gland, which is here the system (1)-(3), which replaces the bath coupling z by coupling via the pineal gland in the brain

  7. Proceedings of IMECE 2002: 2002 ASME International Mechanical Engineering Congress

    E-print Network

    Giurgiutiu, Victor

    ), nondestructive testing (NDT), and nondestructive evaluation (NDE) is well establishes (Krautkramer-22, 2002, New Orleans, LA IMECE2002-39017 EMBEDDED-ULTRASONICS STRUCTURAL RADAR FOR NONDESTRUCTIVE-Ultrasonics Structural Radar (EUSR) is a new concept and methodology for in-situ nondestructive evaluation (NDE) of thin

  8. Formulation and evaluation of C-Ether fluids as lubricants useful to 260 C. [air breathing engines

    NASA Technical Reports Server (NTRS)

    Clark, F. S.; Miller, D. R.

    1980-01-01

    Three base stocks were evaluated in bench and bearing tests to determine their suitability for use at bulk oil temperatures (BOT) from -40 C to +260 C. A polyol ester gave good bearing tests at a bulk temperature of 218 C, but only a partially successful run at 274 C. These results bracket the fluid's maximum operating temperature between these values. An extensive screening program selected lubrication additives for a C-ether (modified polyphenyl ether) base stock. One formulation lubricated a bearing for 111 hours at 274 C (BOT), but this fluid gave many deposit related problems. Other C-ether blends produced cage wear or fatigue failures. Studies of a third fluid, a C-ether/disiloxane blend, consisted of bench oxidation and lubrication tests. These showed that some additives react differently in the blend than in pure C-ethers.

  9. Formal Verification of ASM Designs using the MDG Tool Amjad Gawanmeh, Sofiene Tahar

    E-print Network

    Tahar, Sofiène

    Formal Verification of ASM Designs using the MDG Tool Amjad Gawanmeh, Sofi‚??ene Tahar Concordia framework linking ASM with MDG. ASM (Abstract State Machine) is a state based language for describing transi¬≠ tion systems. MDG (Multiway Decision Graphs) provides symbolic representation of transition systems

  10. Micronet Annual Workshop 2003 A Tool for Verifying ASM Models Using Multiway Decision Graphs

    E-print Network

    Tahar, Sofiène

    @ece.concordia.ca Abstract. In this paper we present a formal hardware verification tool linking ASM with MDG. ASM (Abstract State Machines) is a state based language for describing transition systems. MDG (Multiway Decision and functions. We implemented a transformation tool that automatically generates MDG models from ASM

  11. ASME Journal of Mechanical Design Exploration of the Effectiveness of Physical

    E-print Network

    Chen, Wei

    ASME Journal of Mechanical Design 1 Exploration of the Effectiveness of Physical Programming of Physical Programming in Robust Design," ASME Journal of Mechanical Design, Vol. 122, June 2000. #12;ASME Journal of Mechanical Design 1 Exploration of the Effectiveness of Physical Programming in Robust Design

  12. A look at current and ongoing activities of ASME codes and standards: ASME Section III

    SciTech Connect

    Borter, W.H. [VECTRA Technological, Inc., San Jose, CA (United States)

    1995-12-01

    The 1994 Addenda will bring in two new concepts to the ASME Section 3 Code. The first is a new NCA-3800 which will focus more on the hardware and less on the paper associated with material. The second is a new approach on piping seismic design rules. In addition to these two changes a new revision to Code Case N-483 (N-483-2) is in the process which will establish the testing and examinations required to accept material for Section 3 fabrication.

  13. Comparison between ASME and ISO standards on surface texture

    NASA Astrophysics Data System (ADS)

    Hu, Kai; Jiang, Xiangqian; Liu, Xiaojun; Xu, Zhengao

    2006-11-01

    Surface texture is generally a significant technique requirement of high-tech products. Surface quality information can usually play an increasing role in achieving interoperability among existing products, create order in markets, simplify production and ensure safety. As the most authoritative standard organizations, ASME and ISO services are used throughout the world, their codes and standards influence global manufacturers and consumers. ASME B46.1 is one of many vital tools to promote surface measurement techniques, while ISO has a set standard system for surface measurement, analysis and evaluation. This paper compares the ASME B46.1 (2002) standard (Surface texture: surface roughness, waviness, and lay) with ISO 3274 (1997) standard on methods of surface profiles filtering. It preformed the present research in order to show the latest developments of the ASME B46.1 (2002) in the regime of contact profiling techniques where the degree of measurement control is highly advanced, and a large range of other techniques that present valid and useful descriptions of surface texture. Also, this paper shows the differences of terms, definitions and surface texture parameters between ASME B46.1 (2002) and ISO 4287 (1998). The different evaluation results have been calculated based on above two standards for the same surface data. Obviously, it is necessary to consider the divergence above to develop China's standards (GB) on surface texture.

  14. EXPERIMENTAL AND ENGINEERING SUPPORT FOR THE CAFB (CHEMICALLY ACTIVE FLUID-BED) DEMONSTRATION: RESIDUE DISPOSAL/UTILIZATION

    EPA Science Inventory

    The report gives results of an investigation of the disposal and utilization of spent sulfur sorbent from the Chemically Active Fluid-bed (CAFB) process. Lignite ash with a minimum of 10% CaO can be used as a replacement for sand or medium aggregate or as a partial replacement fo...

  15. IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, VOL. 52, NO. 4, APRIL 2005 557 Pulsatile Cerebrospinal Fluid Dynamics in the

    E-print Network

    Linninger, Andreas A.

    in communicating hydrocephalus. Further- more, Hakim's hypothesis cannot explain why the intracranial pressure (ICP) often returns to almost normal levels in patients with communicating hydrocephalus. An understanding of the basic underlying fluid mechanics in the normal brain and in hydrocephalus is needed to develop more

  16. CONTENT KNOWLEDGE (Declarative Knowledge): Students will demonstrate a broad knowledge of fundamental and applied engineering subjects: fluid and solid

    E-print Network

    Fernandez, Eduardo

    Communication, Oral Communication, Team/Collaborative Communication), and CRITICAL THINKING SKILLS and final presentation. CONTENT KNOWLEDGE (Technical Skills), and COMMUNICATION SKILLS (Written engineering problems; ∑ understanding of professional and ethical responsibility; ∑ ability to communicate

  17. Multi-elemental analysis of jet engine lubricating oils and hydraulic fluids and their implication in aircraft air quality incidents.

    PubMed

    van Netten, C

    1999-05-01

    The flight crews of aircraft often report symptoms including dizziness, nausea, disorientation, blurred vision and tingling in legs and arms. Many of these incidents have been traced to contamination of cabin air with lubricating oil, as well as hydraulic fluid, constituents. Considering that these air contaminants are often subjected to temperatures in excess of 500 degrees C, a large number of different exposures can be expected. Although the reported symptoms are most consistent with exposures to volatile organic compounds, carbon monoxide, and the organophosphate constituents in these oils and fluids, the involvement of these agents has not been clearly demonstrated. Possible exposure to toxic elements, such as lead, mercury, thallium and others, have not been ruled out. In order to assess the potential of exposure to toxic elements a multi-elemental analysis was done on two hydraulic fluids and three lubricating oils which have been implicated in a number of air quality incidents. A secondary objective was to establish if the multi-elemental concentrations of the fluids tested are different enough to allow such an analysis to be used as a possible method of identifying the source of exposure that might have been present during aircraft air quality incidents. No significant concentrations of toxic elements were identified in any of the oils or hydraulic fluids. The elemental compositions of the samples were different enough to be used for identification purposes and the measurement of only three elements was able to achieve this. Whether these findings have an application, in aircraft air quality incident investigations, needs to be established with further studies. PMID:10418167

  18. A design strategy for the use of vortex generators to manage inlet-engine distortion using computational fluid dynamics

    NASA Technical Reports Server (NTRS)

    Anderson, Bernhard H.; Levy, Ralph

    1991-01-01

    A reduced Navier-Stokes solution technique was successfully used to design vortex generator installations for the purpose of minimizing engine face distortion by restructuring the development of secondary flow that is induced in typical 3-D curved inlet ducts. The results indicate that there exists an optimum axial location for this installation of corotating vortex generators, and within this configuration, there exists a maximum spacing between generator blades above which the engine face distortion increases rapidly. Installed vortex generator performance, as measured by engine face circumferential distortion descriptors, is sensitive to Reynolds number and thereby the generator scale, i.e., the ratio of generator blade height to local boundary layer thickness. Installations of corotating vortex generators work well in terms of minimizing engine face distortion within a limited range of generator scales. Hence, the design of vortex generator installations is a point design, and all other conditions are off design. In general, the loss levels associated with a properly designed vortex generator installation are very small; thus, they represent a very good method to manage engine face distortion. This study also showed that the vortex strength, generator scale, and secondary flow field structure have a complicated and interrelated influence over engine face distortion, over and above the influence of the initial arrangement of generators.

  19. FLUID TRANSPORT THROUGH POROUS MEDIA

    EPA Science Inventory

    Fluid transport through porous media is a relevant topic to many scientific and engineering fields. Soil scientists, civil engineers, hydrologists and hydrogeologists are concerned with the transport of water, gases and nonaqueous phase liquid contaminants through porous earth m...

  20. Fluid&ParticulateSystems 424514/2010

    E-print Network

    Zevenhoven, Ron

    Fluid&ParticulateSystems 424514/2010 Fluid&ParticulateSystems √?A424514/2014 Fluid&ParticulateSystems √?A424514/2014 Fluid and Particulate systems 424514 /2014 BASIC PRINCIPLES / REVIEW COURSE OVERVIEW Ron Zevenhoven √?A Thermal and Flow Engineering ron.zevenhoven@abo.fi 1Fluid&ParticulateSystems 424514

  1. Fluid&ParticulateSystems 424514/2010

    E-print Network

    Zevenhoven, Ron

    Fluid&ParticulateSystems 424514/2010 Fluid&ParticulateSystems √?A424514/2014 Fluid&ParticulateSystems √?A424514/2014 Fluid and Particulate systems 424514 /2014 LIQUID/SOLID SEPARATIONS Filtration, Sedimentation, Centrifuges Ron Zevenhoven √?A Thermal and Flow Engineering ron.zevenhoven@abo.fi 7Fluid

  2. Fluid&ParticulateSystems 424514/2010

    E-print Network

    Zevenhoven, Ron

    Fluid&ParticulateSystems 424514/2010 Fluid&ParticulateSystems √?A424514/2014 Fluid and Particulate" Ron Zevenhoven √?A Thermal and Flow Engineering ron.zevenhoven@abo.fi 9Fluid&ParticulateSystems 424514/2010 Fluid&ParticulateSystems √?A424514/2014 februari 2014 √?bo Akademi University - V√§rme- och

  3. Fluid&ParticulateSystems 424514/2010

    E-print Network

    Zevenhoven, Ron

    Fluid&ParticulateSystems 424514/2010 Fluid&ParticulateSystems √?A424514/2014 Fluid and Particulate Engineering ron.zevenhoven@abo.fi 6Fluid&ParticulateSystems 424514/2010 Fluid&ParticulateSystems √?A424514 8, FI-20500 √?bo / Turku Finland RoNz 2januari 2014 #12;Fluid&ParticulateSystems 424514/2010 Fluid

  4. Fluid&ParticulateSystems 424514/2010

    E-print Network

    Zevenhoven, Ron

    Fluid&ParticulateSystems 424514/2010 Fluid&ParticulateSystems √?A424514/2014 10 Fluid Engineering ron.zevenhoven@abo.fi Fluid&ParticulateSystems 424514/2010 Fluid&ParticulateSystems √?A424514 √?bo / Turku Finland RoNz 2/38 #12;Fluid&ParticulateSystems 424514/2010 Fluid&ParticulateSystems √?A

  5. Mechanical engineering Department Seminar

    E-print Network

    Mechanical engineering Department Seminar James Bird Department of Mechanical Engineering Boston ≠ are discussed. James Bird is an Assistant Professor in the Mechanical Engineering Department at Boston completed post-doctoral research at MIT. His research interests include experimental fluid mechanics

  6. Estimating diesel engine performance by indirect methods

    E-print Network

    McKiernan, Michael

    1987-01-01

    ESTIMATING DIESEL ENGINE PERFORMANCE BY INDIRECT METHODS A Thesis by MICHAEL MCKIERNAN Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements of the degree of MASTER OF SCIENCE May 1987 Major... Subject: Agricultural Engineering ESTIMATING DIESEL ENGINE PERFORMANCE BY INDIRECT NETHODS A Thesis by NICHAEL MCKIERNAN Approved as to style and content by: i A. Stout (Chairman of Comittee) ephen W. Searcy (Member) Thomas R. La (Nember...

  7. FAMUFSU COLLEGE OF ENGINEERING Department of Mechanical Engineering

    E-print Network

    FAMUFSU COLLEGE OF ENGINEERING Department of Mechanical Engineering 2525 Pottsdamer Street, Room --------------------------------------------------------------------------------------------------------------------- University GPA _____ Mechanical Engineering GPA _____ Pre Engineering GPA _____ Admin initial Systems II __________ EML 4304L, Thermal Fluids Lab ________ EML 3018C, Mechanical Systems II

  8. Physics of Mechanical, Gaseous, and Fluid Systems. A Study Guide of the Science and Engineering Technician Curriculum.

    ERIC Educational Resources Information Center

    Dixon, Peggy; And Others

    This study guide is part of a program of studies entitled Science and Engineering Technician (SET) Curriculum. The SET Curriculum integrates elements from the disciplines of chemistry, physics, mathematics, mechanical technology, and electronic technology. The objective of this curriculum development project is to train technicians in the use ofÖ

  9. Areas of Specialization Aerospace Engineering

    E-print Network

    Kamat, Vineet R.

    Pharmaceutical Engineering Robotics & Autonomous Vehicles Macromolecular Science & Engineering BiomaterialsAreas of Specialization Aerospace Engineering Adaptive Control for Aerospace Applications Engineering Structural Health Monitoring Turbulence & Fluid Mechanics Wind Energy Applied Physics Biomedical

  10. Copyright 2009 by ASME Proceedings of the ASME 2009 Heat Transfer Summer Conference HT2009

    E-print Network

    Bahrami, Majid

    OF SOURCE GEOMETRY Mohsen Akbari*, David Sinton¬į, Majid Bahrami* *Mechatronic System Engineering School of Engineering Science, Simon Fraser University, Surrey, BC, V3T 0A3. ¬įDepartment of Mechanical Engineering

  11. 1 Copyright 2010 by ASME Proceedings of the 8th international conference on Nanochannels, Microchannels and Minichannels

    E-print Network

    Bahrami, Majid

    -Varying Cross-section Microchannels M. Akbari Mechatronic System Engineering School of Engineering Science, Simon Fraser University, Surrey, BC, V3T 0A3, Canada. M. Bahrami Mechatronic System Engineering School, Microchannels and Minichannels and 3rd joint US-European Fluids Engineering Summer meeting August 1-5, 2010

  12. Engine having multiple pumps driven by a single shaft

    SciTech Connect

    Blass, James R. (Bloomington, IL)

    2001-01-01

    An engine comprises an engine housing. A first engine fluid sub-system that includes a first pump and the engine housing defining a first fluid passage is also included in the engine. The engine also includes at least one additional engine fluid sub-system that includes a second pump and the engine housing defining a second fluid passage. A rotating shaft is at least partially positioned in the engine housing, the first pump and the second pump.

  13. Applied Fluid Mechanics. Lecture Notes.

    ERIC Educational Resources Information Center

    Gregg, Newton D.

    This set of lecture notes is used as a supplemental text for the teaching of fluid dynamics, as one component of a thermodynamics course for engineering technologists. The major text for the course covered basic fluids concepts such as pressure, mass flow, and specific weight. The objective of this document was to present additional fluidsÖ

  14. Proceedings of Heat Transfer 2003: ASME Summer Heat Transfer Conference

    E-print Network

    Kandlikar, Satish

    Proceedings of Heat Transfer 2003: ASME Summer Heat Transfer Conference Las Vegas, Nevada, USA July 21-23, 2003 HT2003-47449 HEAT TRANSFER FROM A MOVING AND EVAPORATING MENISCUS ON A HEATED SURFACE meniscus with complete evaporation of water without any meniscus break-up. The experimental heat transfer

  15. Proceedings of HT2009 2009 ASME Summer Heat Transfer Conference

    E-print Network

    Guo, Zhixiong "James"

    Proceedings of HT2009 2009 ASME Summer Heat Transfer Conference July 19-23, 2009, San Francisco, CA, USA HT2009-88261 SIMULATION OF FOCUSED RADIATION PROPAGATION AND TRANSIENT HEAT TRANSFER IN TURBID-dependent radiation and conduction bio-heat transfer model. Ultrashort pulsed radiation transport in the cylindrical

  16. Proceedings of HT2008 2008 ASME Summer Heat Transfer Conference

    E-print Network

    Ghajar, Afshin J.

    An important design problem in industrial heat exchangers arises when the flow inside the tubes falls with a rounded entrance. If the flow has a disturbed entrance typical of heat exchangers, in whichProceedings of HT2008 2008 ASME Summer Heat Transfer Conference August 10-14, 2008, Jacksonville

  17. ASMs and Operational Algorithmic Completeness of Lambda Calculus

    E-print Network

    Paris-Sud XI, Universitť de

    ASMs and Operational Algorithmic Completeness of Lambda Calculus Marie Ferbus-Zanda ferbus Introduction 3 1.1 Operational versus Denotational Completeness . . . . . . . . . 3 1.2 Lambda Calculus in computer science LNCS 6300 (2010) 00" #12;3 Lambda Calculus 18 3.1 Lambda Terms

  18. 1 Copyright 2004 by ASME Proceedings of Solar 2004

    E-print Network

    Ribando, Robert J.

    thermal storage capacity (mass times specific heat capacity). Many older buildings, including those build1 Copyright © 2004 by ASME Proceedings of Solar 2004 July 11-14, 2004 Portland, Oregon ISEC2004 the thermal resistance and thermal capacitance inherent in this "sandwich" construction. NOMENCLATURE cp

  19. 1 Copyright 2007 by ASME Proceedings of OMAE 2007

    E-print Network

    Manuel, Lance

    1 Copyright © 2007 by ASME Proceedings of OMAE 2007 26th International Conference on Offshore-INDUCED VIBRATION AND COINCIDENT CURRENT VELOCITY PROFILES FOR A DEEPWATER DRILLING RISER T. Srivilairit Bechtel the behavior of deepwater drilling risers. The data are comprised of riser accelerations and coincident current

  20. 1 Copyright ## by ASME Proceedings of ICEM `03

    E-print Network

    Sheffield, University of

    in cement is the favoured method in the UK for disposal of intermediate and low level radioactive wastes and in particular, its associated radioactive properties. Within the UK there are three categories, Low Level Waste1 Copyright © ## by ASME Proceedings of ICEM `03: The 9th International Conference on Radioactive

  1. 1 Copyright 2003 by ASME Proceedings of IMECE 2003

    E-print Network

    Giurgiutiu, Victor

    ]. Such sensors should be able to scan the structure and identify the presence of defects and incipient damage-plane motion, excited by the applied oscillatory voltage through the piezoelectric effect, with the #12;2 Copyright © 2003 by ASME Lamb-waves particle motion on the material surface. Lamb waves can be either quasi

  2. Gamma-ray Burst Positions from the ASM on RXTE

    E-print Network

    Hale V. Bradt; Donald A. Smith

    1999-05-20

    The RXTE/ASM has detected and positioned 14 confirmed GRB bursts (at this writing, Jan. 1999) including six whose positions were comunicated to the community 2 to 32 hours after the burst. Two of these latter bursts led to measurements of optical red shifts but one, despite an easily detected x-ray afterglow, produced no detectable optical or radio afterglow.

  3. Application of the Master Curve in the ASME Code

    Microsoft Academic Search

    S. T Rosinski; W. L Server

    2000-01-01

    The ASME Code reference toughness curves are based upon an approach that utilizes a material normalizing and indexing parameter, RTNDT. This parameter is based upon the results from Charpy V-notch and drop weight nil-ductility transition temperature tests as defined in the Code. In many cases, this indexing parameter is overly conservative relative to the real toughness of ferritic pressure vessel

  4. 1 Copyright 2000 by ASME Proceedings of IMECE 2000

    E-print Network

    Dennis, Brian

    Associate Professor. NOMENCLATURE C = specific heat per unit mass E = Young's modulus of elasticity F = fitness function in the optimization G = shear modulus H = latent heat per unit mass k = thermal © 2000 by ASME which have the organ packed in ice at 4 degrees Celsius with a solution called UW (for

  5. Proceedings of ASME NHTC'01 National Heat Transfer Conference

    E-print Network

    Wirtz, Richard A.

    ] numerically studied the effectiveness of the PCM thermal storage unit under various operating conditions. They found that for varying power conditions, the thermal balance is a function of the varying power-12, 2001 Copyright 2001 by ASME1 NHTC2001-20027 FIGURES OF MERIT FOR HYBRID THERMAL ENERGY STORAGE UNITS

  6. 1 Copyright 2004 by ASME Proceedings of MECH'04

    E-print Network

    Hollerbach, John M.

    1 Copyright © 2004 by ASME Proceedings of MECH'04 28 th Biennial Mechanisms and Robotics Conference by a haptic interface, a robotic device that is manipulated by and provides force feedback to the user and feels a virtual assembly using the Sarcos Dextrous Arm Master, a ten degree of freedom hydraulic

  7. Engineering BSc -180 ECTS programs -emphasis on preparation for further studies at MSc/PhD level Financial Engineering Engineering Management Biomedical Engineering Mechatronics Engineering Mechanical Engineering

    E-print Network

    Karlsson, Brynjar

    Financial Engineering Engineering Management Biomedical Engineering Mechatronics Engineering Mechanical-HEIL Physics III T-411-MECH Mechatronics I T-536-RENN Fluid Dynamics **Engineering course **EngineeringEngineering BSc - 180 ECTS programs - emphasis on preparation for further studies at MSc/PhD level

  8. Fluid mass and thermal loading effects on the modal characteristics of space shuttle main engine liquid oxygen inlet splitter vanes

    NASA Technical Reports Server (NTRS)

    Panossian, H. V.; Boehnlein, J. J.

    1987-01-01

    An analysis and evaluation of experimental modal survey test data on the variations of modal characteristics induced by pressure and thermal loading events are presented. Extensive modal survey tests were carried out on a Space Shuttle Main Engine (SSME) test article using liquid nitrogen under cryogenic temperatures and high pressures. The results suggest that an increase of pressure under constant cryogenic temperature or a decrease of temperature under high pressure induces an upward shift of frequencies of various modes of the structures.

  9. YOUR Career in Fluid Power

    NSDL National Science Digital Library

    National Fluid Power Association

    This video is a high-energy, high-impact introduction to the fluid power industry that encourages high school and college students to consider the world of fluid power engineering and the exciting careers available in the field. The video offers a realistic look at the opportunities and challenges facing three young fluid power engineers. A Companion Resource web site has been developed for students interested in learning about fluid power through fun and interesting games and animation. The Companion Resource web site provides in-depth information about fluid power technology and the available career opportunities.

  10. Engineering Engineering

    E-print Network

    Maroncelli, Mark

    Engineering Engineering Technology & A T P E N N S T A T E 2 0 1 0 ­ 2 0 1 1 #12;2 Join us at penn state! Since 1896, Penn State has been a leader in engineering and engineering technology education varieties of engineering and engineering technology majors found anywhere in the United States. This means

  11. Applied fluid dynamics handbook

    NASA Astrophysics Data System (ADS)

    Blevins, R. D.

    The fundamental principles of fluid dynamics and its applications in engineering, design, atmospheric science, and oceanography are discussed; computation techniques are explained; and numerical data from analytical and experimental studies are compiled in tables, graphs, diagrams, and maps. Topics covered include dimensional analysis; conservation equations; pipe and duct flow nozzles, diffusers, and Venturis; open-channel flow; jets, plumes, wakes, and shear layers; fluid-dynamic drag; wind and atmospheric processes; ocean waves and coastal processes; porous media, fluid bearings, and fluid seals; and the properties of gases and liquids. The Navier-Stokes and boundary-layer equations, Reynolds stress and turbulence measurements, and potential flow are treated in appendices.

  12. 1 Copyright 2013 by ASME Proceedings of the ASME/FDA 2013 1st Annual Frontiers in Medical Devices: Applications of Computer Modeling

    E-print Network

    1 Copyright © 2013 by ASME Proceedings of the ASME/FDA 2013 1st Annual Frontiers in Medical Devices as provide instruction. Since previous work has shown that medical students perform no better than random angles, subjects were presented with an atrial view, the perspective seen intraoperatively

  13. Fluid Power WWW Virtual Library

    NSDL National Science Digital Library

    Providing links to sites about hydraulic and pneumatic power transmission and control, The WWW Virtual Library for Fluid Power is run in association with Fluid PowerNet (an international network of fluid power R&D laboratories). Academic and industrial research sites, discussion groups, and personal Websites dealing with fluid power can be accessed, along with a regularly updated listing of conferences and events. Simulation, conditions monitoring, control engineering, failure modes, and effects analysis are a few of the topics covered.

  14. ASM-024, a Piperazinium Compound, Promotes the In Vitro Relaxation of ?2-Adrenoreceptor Desensitized Tracheas

    PubMed Central

    IsraŽl-Assayag, Evelyne; Beaulieu, Marie-Josťe; Cormier, Yvon

    2015-01-01

    Inhaled ?2-adrenoreceptor agonists are widely used in asthma and chronic obstructive pulmonary disease (COPD) for bronchoconstriction relief. ?2-adrenoreceptor agonists relax airway smooth muscle cells via cyclic adenosine monophosphate (cAMP) mediated pathways. However, prolonged stimulation induces functional desensitization of the ?2-adrenoreceptors (?2-AR), potentially leading to reduced clinical efficacy with chronic or prolonged administration. ASM-024, a small synthetic molecule in clinical stage development, has shown activity at the level of nicotinic receptors and possibly at the muscarinic level and presents anti-inflammatory and bronchodilator properties. Aerosolized ASM-024 reduces airway resistance in mice and promotes in-vitro relaxation of tracheal and bronchial preparations from animal and human tissues. ASM-024 increased in vitro relaxation response to maximally effective concentration of shortóacting beta-2 agonists in dog and human bronchi. Although the precise mechanisms by which ASM-024 promotes airway smooth muscle (ASM) relaxation remain unclear, we hypothesized that ASM-024 will attenuate and/or abrogate agonist-induced contraction and remain effective despite ?2-AR tachyphylaxis. ?2-AR tachyphylaxis was induced with salbutamol, salmeterol and formoterol on guinea pig tracheas. The addition of ASM-024 relaxed concentration-dependently intact or ?2-AR desensitized tracheal rings precontracted with methacholine. ASM-024 did not induce any elevation of intracellular cAMP in isolated smooth muscle cells; moreover, blockade of the cAMP pathway with an adenylate cyclase inhibitor had no significant effect on ASM-024-induced guinea pig trachea relaxation. Collectively, these findings show that ASM-024 elicits relaxation of ?2-AR desensitized tracheal preparations and suggest that ASM-024 mediates smooth muscle relaxation through a different target and signaling pathway than ?2-adrenergic receptor agonists. These findings suggest ASM-024 could potentially provide clinical benefit when used adjunctively with inhaled ?2-adrenoreceptor agonists in those patients exhibiting a reduced response to their chronic use. PMID:25799096

  15. ASM-024, a Piperazinium Compound, Promotes the In Vitro Relaxation of ?2-Adrenoreceptor Desensitized Tracheas.

    PubMed

    IsraŽl-Assayag, Evelyne; Beaulieu, Marie-Josťe; Cormier, Yvon

    2015-01-01

    Inhaled ?2-adrenoreceptor agonists are widely used in asthma and chronic obstructive pulmonary disease (COPD) for bronchoconstriction relief. ?2-adrenoreceptor agonists relax airway smooth muscle cells via cyclic adenosine monophosphate (cAMP) mediated pathways. However, prolonged stimulation induces functional desensitization of the ?2-adrenoreceptors (?2-AR), potentially leading to reduced clinical efficacy with chronic or prolonged administration. ASM-024, a small synthetic molecule in clinical stage development, has shown activity at the level of nicotinic receptors and possibly at the muscarinic level and presents anti-inflammatory and bronchodilator properties. Aerosolized ASM-024 reduces airway resistance in mice and promotes in-vitro relaxation of tracheal and bronchial preparations from animal and human tissues. ASM-024 increased in vitro relaxation response to maximally effective concentration of short-acting beta-2 agonists in dog and human bronchi. Although the precise mechanisms by which ASM-024 promotes airway smooth muscle (ASM) relaxation remain unclear, we hypothesized that ASM-024 will attenuate and/or abrogate agonist-induced contraction and remain effective despite ?2-AR tachyphylaxis. ?2-AR tachyphylaxis was induced with salbutamol, salmeterol and formoterol on guinea pig tracheas. The addition of ASM-024 relaxed concentration-dependently intact or ?2-AR desensitized tracheal rings precontracted with methacholine. ASM-024 did not induce any elevation of intracellular cAMP in isolated smooth muscle cells; moreover, blockade of the cAMP pathway with an adenylate cyclase inhibitor had no significant effect on ASM-024-induced guinea pig trachea relaxation. Collectively, these findings show that ASM-024 elicits relaxation of ?2-AR desensitized tracheal preparations and suggest that ASM-024 mediates smooth muscle relaxation through a different target and signaling pathway than ?2-adrenergic receptor agonists. These findings suggest ASM-024 could potentially provide clinical benefit when used adjunctively with inhaled ?2-adrenoreceptor agonists in those patients exhibiting a reduced response to their chronic use. PMID:25799096

  16. Electrorheological fluids; Proceedings of the 2nd International Conference, Raleigh, NC, Aug. 7-9, 1989

    Microsoft Academic Search

    J. D. Carlson; A. F. Sprecher; Hans Conrad

    1990-01-01

    The present conference on electrorheological fluids discusses ER fluid mechanisms and related fundamentals, ER fluid materials, characterization and property measurement, engineering with ER fluids, and ER fluid devices and applications. Attention is given to viscoelastic behavior of ER fluids, ER fluid modeling, possible phase transition in ERs, and measuring forces between particles in a model ER fluid. Topics addressed include

  17. DEPARTMENT OF MECHANICAL AND MATERIALS ENGINEERING Faculty of Engineering and Applied Science

    E-print Network

    Ellis, Randy

    ) Aerospace 2) Energy and Fluid Systems 3) Manufacturing Engineering 4) Mechatronics Engineering PlusDEPARTMENT OF MECHANICAL AND MATERIALS ENGINEERING Faculty of Engineering and Applied Science FIRST YEAR DISCIPLINE ORIENTATION - Mechanical Engineering Program Monday ­ January 30, 2012 Advice

  18. ASME Code Calculations for the CC Cryostat

    SciTech Connect

    Luther, R.D.; /Fermilab

    1987-11-04

    This engineering note contains the ASHE Code calculations for the CC Cryostat prepared by the manufacturer, Richmond-Lox Equipment Company. Most of these were taken from calculations initially prepared by Fermilab personne1and pub1ished in Eng. Note 68.

  19. Proceedings of ASME TURBO EXPO 2002

    E-print Network

    Thole, Karen A.

    , VA 24061 ABSTRACT Heat transfer predictions in gas turbine engines have focused on cooling techniques and on the effects of various flow phenomena. The effects of wakes, passing shock waves and freestream turbulence in experimental heat transfer measurements in a transonic facility. The grid is desired to produce freestream

  20. Recent changes to ASME B31.3

    SciTech Connect

    Becht, C. IV [Becht Engineering Co., Liberty Corner, NJ (United States); Frikken, D.R. [Monsanto Co., St. Louis, MO (United States); Bane, E.J.

    1996-07-01

    The code for process piping, ASME B31.3 Chemical Plant and Petroleum Refinery Piping, has undergone significant changes and additions in recent years. This includes many aspects of design, materials, and fabrication. Included are substantial changes to material impact testing requirements, qualification procedures for unlisted components, coverage of bellows expansion joints, and safety relief set pressure requirements. This paper provides an update on some of these recent changes to the Code together with some background on reasons for the changes.

  1. Proceedings of the 1994 ASME/IEEE joint railroad conference

    SciTech Connect

    Hawthorne, K.L. [ed.; Hill, J.R. [ed.

    1994-12-31

    The proceedings contains 22 papers from the IEEE/ASME Joint Railroad Conference. Topics discussed include flange bearing crossing frogs; rapid transit; vehicle on-board computer systems; total transport system control functions; automated train dispatching system; wheel thermal damage limits; AC propulsion; AC traction drives; electric power supplies; failure detection and identification; cargo transportation; and critical speed for railroad vehicles. Papers within the scope of the data base have been processed separately.

  2. Fluid infusion system

    NASA Technical Reports Server (NTRS)

    1974-01-01

    Performance testing carried out in the development of the prototype zero-g fluid infusion system is described and summarized. Engineering tests were performed in the course of development, both on the original breadboard device and on the prototype system. This testing was aimed at establishing baseline system performance parameters and facilitating improvements. Acceptance testing was then performed on the prototype system to verify functional performance. Acceptance testing included a demonstration of the fluid infusion system on a laboratory animal.

  3. Fluid fertilizers. [Fluids

    SciTech Connect

    Potts, J.M. (ed.)

    1984-09-01

    The use of fertilizer in the United States has increased spectacularly in the past 20 years. In 1981 plant nutrient use (N + P/sub 2/O/sub 5/ + K/sub 2/O) totaled 23.5 million short tons - compared with only 7.5 million tons in 1960 (table 2). Nutrient use doubled from 1960 to 1970 and tripled from 1960 to 1981. In 1981 fluid nutrient use (mixtures plus nitrogen solutions) totaled 4.1 million tons, more than doubling since 1970 and increasing from 6.3% to 17.5% of the total nutrient use since 1960. Fluid mixtures (NPK) use in 1981 totaled 1.8 million tons of nutrients - about 17% of total mixed fertilizers or 7.5% of total nutrients used. The proportion of total fertilizer nutrients applied in fluid from increases greatly if anhydrous ammonia is included. The 4.6 million tons of nitrogen applied as anhydrous ammonia in 1981 increases total fluid nutrients to 8.1 million tons - 34.5% of the total nutrients applied in the United States. Fluid fertilizer use has grown nearly twice as fast as total fertilizer use, averaging more than 15% per year increase between 1960 and 1970, and an 11% increase between 1960 and 1980. A large part of this increase occurred during the introductory stages of the new product form and was aided by rapid advances in technology.

  4. Interfacing ASM with the MDG Tool Amjad Gawanmeh 1 , So ene Tahar 1 , and Kirsten Winter 2

    E-print Network

    Tahar, Sofiène

    Interfacing ASM with the MDG Tool Amjad Gawanmeh 1 , So#12;#18;ene Tahar 1 , and Kirsten Winter 2 1 an approach to interface Abstract State Machines (ASM) with Multiway Decision Graphs (MDG) to en- able tool. The notions of ASM and MDG are hence closely related to each other, making it appealing to link these two

  5. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...IV of the ASME Boiler and Pressure Vessel Code. 53.01-3 Section 53.01-3...IV of the ASME Boiler and Pressure Vessel Code. (a) Heating boilers shall be designed...IV of the ASME Boiler and Pressure Vessel Code (incorporated by reference; see...

  6. 46 CFR 52.01-2 - Adoption of section I of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...I of the ASME Boiler and Pressure Vessel Code. 52.01-2 Section 52.01-2...I of the ASME Boiler and Pressure Vessel Code. (a) Main power boilers and auxiliary...I of the ASME Boiler and Pressure Vessel Code (incorporated by reference; see...

  7. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Adoption of section IV of the ASME Boiler and Pressure Vessel Code. 53.01-3 Section...Adoption of section IV of the ASME Boiler and Pressure Vessel Code. (a) Heating boilers...with section IV of the ASME Boiler and Pressure Vessel Code (incorporated by...

  8. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Adoption of section IV of the ASME Boiler and Pressure Vessel Code. 53.01-3 Section...Adoption of section IV of the ASME Boiler and Pressure Vessel Code. (a) Heating boilers...with section IV of the ASME Boiler and Pressure Vessel Code (incorporated by...

  9. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Adoption of section IV of the ASME Boiler and Pressure Vessel Code. 53.01-3 Section...Adoption of section IV of the ASME Boiler and Pressure Vessel Code. (a) Heating boilers...with section IV of the ASME Boiler and Pressure Vessel Code (incorporated by...

  10. 46 CFR 53.01-3 - Adoption of section IV of the ASME Boiler and Pressure Vessel Code.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Adoption of section IV of the ASME Boiler and Pressure Vessel Code. 53.01-3 Section...Adoption of section IV of the ASME Boiler and Pressure Vessel Code. (a) Heating boilers...with section IV of the ASME Boiler and Pressure Vessel Code (incorporated by...

  11. Amniotic fluid

    MedlinePLUS

    Amniotic fluid is a clear, slightly yellowish liquid that surrounds the unborn baby (fetus) during pregnancy. It is contained ... the womb, the baby floats in the amniotic fluid. The amount of amniotic fluid is greatest at ...

  12. Fluid varieties

    E-print Network

    Ewa Graczynska; Dietmar Schweigert

    2005-07-01

    We invent the notion of a derived and fluid variety. Fluid variety has no proper derived variety as its subvariety. We examine some properties of fluid and derived varieties. Examples of such varieties of bands are presented.

  13. 3D automatic anatomy recognition based on iterative graph-cut-ASM

    NASA Astrophysics Data System (ADS)

    Chen, Xinjian; Udupa, Jayaram K.; Bagci, Ulas; Alavi, Abass; Torigian, Drew A.

    2010-02-01

    We call the computerized assistive process of recognizing, delineating, and quantifying organs and tissue regions in medical imaging, occurring automatically during clinical image interpretation, automatic anatomy recognition (AAR). The AAR system we are developing includes five main parts: model building, object recognition, object delineation, pathology detection, and organ system quantification. In this paper, we focus on the delineation part. For the modeling part, we employ the active shape model (ASM) strategy. For recognition and delineation, we integrate several hybrid strategies of combining purely image based methods with ASM. In this paper, an iterative Graph-Cut ASM (IGCASM) method is proposed for object delineation. An algorithm called GC-ASM was presented at this symposium last year for object delineation in 2D images which attempted to combine synergistically ASM and GC. Here, we extend this method to 3D medical image delineation. The IGCASM method effectively combines the rich statistical shape information embodied in ASM with the globally optimal delineation capability of the GC method. We propose a new GC cost function, which effectively integrates the specific image information with the ASM shape model information. The proposed methods are tested on a clinical abdominal CT data set. The preliminary results show that: (a) it is feasible to explicitly bring prior 3D statistical shape information into the GC framework; (b) the 3D IGCASM delineation method improves on ASM and GC and can provide practical operational time on clinical images.

  14. HTDVol.335, Proceedings of hte ASME Heat Transfer Division THERMOACOUSTIC WAVE PROPAGATION MODELING USING

    E-print Network

    Vasilyev, Oleg V.

    HTD­Vol.335, Proceedings of hte ASME Heat Transfer Division Volume 4 ASME 1996 THERMOACOUSTIC WAVE of the existing studies on thermoacoustic con­ vection, pressure waves are generated by applying sudden heating ABSTRACT Thermoacoustic wave propagation in a two­dimensional rectan­ gular cavity is studied numerically

  15. X-ray periodicities in sources observed by the RXTE ASM

    E-print Network

    Shivamoggi, Vasudha B

    2005-01-01

    The X-ray intensities measured from 230 X-ray sources observed by the RXTE All-Sky Monitor (ASM) were analyzed for periodic behavior. The ASM has been observing sources for nine years in the 1.5-12 keV energy range. In ...

  16. A Review & Assessment of Current Operating Conditions Allowable Stresses in ASME Section III Subsection NH

    SciTech Connect

    R. W. Swindeman

    2009-12-14

    The current operating condition allowable stresses provided in ASME Section III, Subsection NH were reviewed for consistency with the criteria used to establish the stress allowables and with the allowable stresses provided in ASME Section II, Part D. It was found that the S{sub o} values in ASME III-NH were consistent with the S values in ASME IID for the five materials of interest. However, it was found that 0.80 S{sub r} was less than S{sub o} for some temperatures for four of the materials. Only values for alloy 800H appeared to be consistent with the criteria on which S{sub o} values are established. With the intent of undertaking a more detailed evaluation of issues related to the allowable stresses in ASME III-NH, the availabilities of databases for the five materials were reviewed and augmented databases were assembled.

  17. Thermal conductivity of nanoparticle-fluid mixture

    Microsoft Academic Search

    X. Wang; Xianfan Xu

    1999-01-01

    Effective thermal conductivity of mixtures of fluids and nanometer-size particles is measured by a steady-state parallel-plate method. The tested fluids contain two types of nanoparticles, Al‚O‚ and CuO, dispersed in water, vacuum pump fluid, engine oil, and ethylene glycol. Experimental results show that the thermal conductivities of nanoparticle-fluid mixtures are higher than those of the base fluids. Using theoretical models

  18. The Variety of Fluid Dynamics.

    ERIC Educational Resources Information Center

    Barnes, Francis; And Others

    1980-01-01

    Discusses three research topics which are concerned with eminently practical problems and deal at the same time with fundamental fluid dynamical problems. These research topics come from the general areas of chemical and biological engineering, geophysics, and pure mathematics. (HM)

  19. Engineering Fluid Dynamics Research of the Group Engineering Fluid

    E-print Network

    Twente, Universiteit

    , research focuses on the fields listed below. Rotating flow machines The flow in centrifugal pumps- induced vibrations of compressor valves and on the unsteady motion of bluff bodies, in particular of gas

  20. Journal of Nanotechnology in Engineering and Medicine Journal Copy of e-mail Notification

    E-print Network

    Mukhopadhyay, Sharmila M.

    Journal of Nanotechnology in Engineering and Medicine Journal Copy of e-mail Notification Journal of Nanotechnology in Engineering and Medicine Published by ASME Dear Author, Congratulations on having your paper time. Please reply within 48 hours. Your prompt attention to and return of page proofs will speed

  1. 77 FR 3073 - American Society of Mechanical Engineers (ASME) Codes and New and Revised ASME Code Cases...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-23

    ...nickel-alloy upper vessel head penetration nozzles. List of Subjects in 10 CFR Part 50 Antitrust...for PWR Reactor Vessel Upper Heads With Nozzles Having Pressure-Retaining Partial-Penetration...Standards for Class 1 PWR Piping and Vessel Nozzle Butt Welds Fabricated with UNS...

  2. 1 Copyright 2010 by ASME Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers and

    E-print Network

    in physical product development. Examples include open-source 3D printers [1], electronics prototyping products are also information products during the design phase, and accelerated by the reducing prices of 3D printing capabilities. Open-source processes emerged in software products earlier than in physical

  3. 1 Copyright 2007 by ASME Proceedings of the ASME 2007 International Design Engineering Technical Conferences & Computers and

    E-print Network

    Ross, Shane

    exoskeletons. 1 INTRODUCTION Advances in robotic exoskeleton technology are catching up to the sci-fi dream of the wearable electro-mechanical suit that seamlessly augments the wearer's abilities. Incorporating additional

  4. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 Internal Combustion Engine Division Fall Technical Conference

    E-print Network

    Daraio, Chiara

    and Combustion Systems ETH ZŁrich Switzerland ABSTRACT The emission trade-off between soot and NOx is an issue in the NOx emissions. However, an accurate and general rule of how to parameterize a post injection Acoustic Soot Sensor), the in-cylinder soot formation and oxidation process have been investigated

  5. Proceedings of ASME-IMECE'07 2007 ASME International Mechanical Engineering Congress and RD&D Expo

    E-print Network

    Van de Ven, James D.

    /off valve with a fixed displacement pump and an ac- cumulator to achieve the functionality of a variable times on the order of 20ms for flow rates of 5l/m-40l/m. Digital valve con- trol with current valves/OFF VALVE Haink C. Tu, Michael B. Rannow, James D. Van de Ven, Meng Wang, Perry Y. Liand Thomas R. Chase

  6. Proceedings of ASME-IMECE'07 2007 ASME International Mechanical Engineering Congress and RD&D Expo

    E-print Network

    Li, Perry Y.

    of a variable displacement pump. A critical require- ment for practical on/off valve based control bandwidth, and reduce output pressure ripple. Commercial on/off valves typically have transition times/OFF VALVE Haink C. Tu, Michael B. Rannow, James D. Van de Ven, Meng Wang, Perry Y. Liand Thomas R. Chase

  7. 1 Copyright 2009 by ASME Proceedings of the 2009 ASME International Design Engineering Technical Conferences and Computers and

    E-print Network

    Michalek, Jeremy J.

    ) emissions per mile when powered by electricity than by gasoline (Samaras and Meisterling, 2008). In the best concerns in the United States by reducing operating cost, greenhouse gas (GHG) emissions and petroleum while also reducing fuel consumption and GHG emissions, but drivers who cannot charge frequently

  8. Proceedings of ASME-IMECE'05 2005 ASME International Mechanical Engineering Congress and RD&D Expo

    E-print Network

    Li, Perry Y.

    hydraulics to many emerging robotic applications, such as personal assistance robots, robotic tools of hydraulic systems is more energy efficient than throttle valve based methods to control hydraulic systems the system to achieve high control bandwidths. 1 Introduction Every hydraulic system requires at least one

  9. Viscosity of diesel engine fuel oil under pressure

    NASA Technical Reports Server (NTRS)

    Hersey, Mayo D

    1929-01-01

    In the development of Diesel engine fuel injection systems it is necessary to have an approximate knowledge of the absolute viscosity of the fuel oil under high hydrostatic pressures. This report presents the results of experimental tests conducted by Mr. Jackson Newton Shore, utilizing the A.S.M.E. high pressure equipment.

  10. Electrical & Computer Engineering S E M I N A R

    E-print Network

    Koppelman, David M.

    Pegasus I, the First Incarnation of the LSU Flying Automobile (Jointly hosted by the IEEE, ASME and AIAA for developing a radio controlled model of flying automobile Pegasus I at the LSU Division of Engineering Research. Pegasus I is the first step towards the ultimate goal of a wingless, VTOL aeromobile

  11. 1 Copyright 2000 byASME Submitted to the 2000 ASME IMECE

    E-print Network

    Wirtz, Richard A.

    and similar electronic equipment. Because power is consumed at different rates, a conventional MCM cooling consuming module cooler. Phase Change Materials that undergo "dry" phase transition (no liquid phase the need for cooling loops, pumps, and other fluid handling systems. Thus, the TES unit operates passively

  12. Report on task assignment No. 3 for the Waste Package Project; Parts A & B, ASME pressure vessel codes review for waste package application; Part C, Library search for reliability/failure rates data on low temperature low pressure piping, containers, and casks with long design lives

    SciTech Connect

    Trabia, M.B.; Kiley, M.; Cardle, J.; Joseph, M.

    1991-07-01

    The Waste Package Project Research Team, at UNLV, has four general required tasks. Task one is the management, quality assurance, and overview of the research that is performed under the cooperative agreement. Task two is the structural analysis of spent fuel and high level waste. Task three is an American Society of Mechanical Engineers (ASME) Pressure Vessel Code review for waste package application. Finally, task four is waste package labeling. This report includes preliminary information about task three (ASME Pressure Vessel Code review for Waste package Application). The first objective is to compile a list of the ASME Pressure Vessel Code that can be applied to waste package containers design and manufacturing processes. The second objective is to explore the use of these applicable codes to the preliminary waste package container designs. The final objective is to perform a library search for reliability and/or failure rates data on low pressure, low temperature, containers and casks with long design lives.

  13. Report on the activities of the ASME-NQA Committee Working Group on Quality Assurance Requirements for Research and Development, April 1990 to August 1991

    SciTech Connect

    Dronkers, J.J.

    1991-09-01

    This report transmits to the public eye the activities of the American Society of Mechanical Engineers-Nuclear Quality Assurance (ASME-NQA) Committee Working Group on Quality Assurance Requirements for Research and Development. The appendix lists the members of this group as of August 1991. The report covers a period of 17 months. The working group met eight times in this period, and much intellectual ground was traversed. There was seldom agreement on the nature of the task, but there was no doubt as to its urgency. The task was how to adapt the nuclear quality assurance standard, the NQA-1, to research and development work. 1 fig., 7 tabs.

  14. ASME code safety valve rules -- A review and discussion

    SciTech Connect

    Bernstein, M.D. [Foster Wheeler Energy Corp., Clinton, NJ (United States); Friend, R.G. [Crosby Valve and Gage Co., Wrentham, MA (United States)

    1995-05-01

    Safety valve rules, i.e., rules for overpressure protection by the use of various pressure-relieving devices, vary somewhat among the five book sections of the ASME Boiler and Pressure Vessel Code which require such protection. This paper reviews those rules by discussing the following topics: pressure relief device terminology and function; the problem of overpressure protection; code rules for overpressure protection; the various pressure relief devices permitted by the code; design of pressure relief valves; how relieving capacities are established and certified; the qualification of pressure relief device manufacturers; installation guidelines; and concluding remarks.

  15. Occupational Exposure to Metalworking Fluid Mist and Sump Fluid Contaminants

    Microsoft Academic Search

    A. T. SIMPSON; M. STEAR; J. A. GROVES; M. PINEY; S. D. BRADLEY; S. STAGG; B. CROOK

    2003-01-01

    This paper summarizes the analytical and occupational hygiene findings from a recent survey of occupational exposure to metalworking fluids (MWFs) in the engineering industry. The aim of the survey was to link MWF mist exposure measurements with particular engineering processes and controls, and utilize the data obtained to develop exposure standards. At the same time the opportunity was taken to

  16. Engineering Engineering

    E-print Network

    Zhang, Junshan

    Phillip McClay Principal Analog Engineer Primarion Wally Meinell Group Manager Texas Instruments Robert Awards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 11 Feature Story AND SIDEBAR STORIES Faculty Bios

  17. Harmonic engine

    DOEpatents

    Bennett, Charles L. (Livermore, CA)

    2009-10-20

    A high efficiency harmonic engine based on a resonantly reciprocating piston expander that extracts work from heat and pressurizes working fluid in a reciprocating piston compressor. The engine preferably includes harmonic oscillator valves capable of oscillating at a resonant frequency for controlling the flow of working fluid into and out of the expander, and also preferably includes a shunt line connecting an expansion chamber of the expander to a buffer chamber of the expander for minimizing pressure variations in the fluidic circuit of the engine. The engine is especially designed to operate with very high temperature input to the expander and very low temperature input to the compressor, to produce very high thermal conversion efficiency.

  18. Statistical Physics of Complex Fluids

    Microsoft Academic Search

    R Golestanian; M R H Khajehpour; M R Kolahchi; S Rouhani

    2005-01-01

    The field of complex fluids is a rapidly developing, highly interdisciplinary field that brings together people from a plethora of backgrounds such as mechanical engineering, chemical engineering, materials science, applied mathematics, physics, chemistry and biology. In this melting pot of science, the traditional boundaries of various scientific disciplines have been set aside. It is this very property of the field

  19. Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Shenoy, Prashant

    translation be- tween different computer aided design (CAD) formats, data in- tegration between different a significant amount of work has been done on the extension and standardization of CAD data formats as well approach enables automating the data exchange between dif- ferent 3D CAD systems as illustrated in Figure 1

  20. Proceedings of the ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Shenoy, Prashant

    -48530 A PROGRAMMING LANGUAGE APPROACH TO PARAMETRIC CAD DATA EXCHANGE John Altidor Jack Wileden Department of Computer: {corde20f,astjohn}@mtholyoke.edu ABSTRACT Data exchange between different computer-aided design (CAD. Existing CAD data format standards such as STEP and IGES enable geo- metric data exchange. However

  1. Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Williams II, Robert L.

    /MECH-28729DRAFT ANALYSIS OF A NEW FORM OF INTRINSICALLY AUTOMATIC CONTINUOUSLY VARIABLE TRANSMISSION Athens, Ohio, USA williar4@ohio.edu ABSTRACT Effective continuously variable transmission (CVT) designs give many advantages over a discrete transmission system. Currently, CVTs are becoming popular

  2. Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Ober-BlŲbaum, Sina

    multi-body systems is of great interest in many different research areas, especially the optimal control of the motion of the human body itself. For several reasons it is important to under- stand the muscle is described in terms of redundant coordi- nates subject to holonomic constraints. For multi-body systems

  3. Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Feeny, Brian

    problems that produce esti- mates of natural modes, modal frequencies and modal damping. Georgiou [8] has-28919 COMPLEX MODAL DECOMPOSITION FOR ESTIMATING WAVE PROPERTIES IN ONE-DIMENSIONAL MEDIA B. F. Feeny-domain. The method is then ap- plied to the extraction of modes from simulation data of sampled multi-modal traveling

  4. Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Suresh, Krishnan

    is on efficient microstructural topology optimization for 3d-printing. In particular, the computational bottle-specifications into optimal, but perhaps complex, topologies, and then directly fabricate these through 3d-printing (see-level geometry, and localized micro-level structure to meet a desired objective. Current 3d-printing processes

  5. Proceedings of the ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Chen, YangQuan

    ¨older exponent H(t). The comparison of the analysis results for human sleep EEG signals in different stages using assessment of brain activities in dif- ferent sleep stages. 1 INTRODUCTION Electroencephalogram (EEG sleep EEG signals is investi- gated.The earliest detailed description of various stages of sleep

  6. Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Rosen, Jacob

    -29233 THE INFLUENCE OF POST ANGIOPLASTY STENT IMPLANT PROFILE ON ARTERIAL WALL STRESS Mircea Teodorescu School, LE11 3TU, UK Email: h.rahnejat@lboro.ac.uk ABSTRACT One of the main causes for post angioplasty (angioplasty) proved

  7. Proceedings of ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference

    E-print Network

    Yang, Maria

    -DISCIPLINARY DESIGN OPTIMIZATION FOR LARGE-SCALE REVERSE OSMOSIS SYSTEMS Bo Yang Yu , Tomonori Honda Department of a 30,000m3/day capacity reverse osmosis plant situated in the Middle East, with a focus on com- paring osmosis (RO) technology, continue to decrease, large-scale re- verse osmosis desalination plants are being

  8. Proceedings of the ASME 2010 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Paris-Sud XI, Université de

    life's task that we perform unconsciously using our hands. However imitating grasping in virtual worlds move our hand and fingers for grasping differ. But for the same object, there can be several possible-28416 DESIGN OF AN IMMERSIVE PERIPHERAL FOR OBJECT GRASPING Jean-Rémy Chardonnet Jean Kuntzmann Laboratory

  9. Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Awtar, Shorya

    biology. The two major processes involved in protein production are transcription and translation. During transcription the information contained in a gene (a seg- ment of DNA) is copied into messenger RNA (mRNA). Then, through translation, protein is produced from mRNA. Some pro- teins (called transcription factors) can

  10. Proceedings of the ASME 2013 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Papalambros, Panos

    architecture with one PG [16] and 6 clutches; Liu and Peng analyzed 288 feasible modes yielded from a 2-PG a systematic way to identify the optimal architecture for a given vehicle drive cycle, rather than parametrically optimizing one or more pre-selected archi- tectures. An automatic generator of feasible driving

  11. Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference

    E-print Network

    Papalambros, Panos

    . For ex- ample, the Toyota Prius powertrain has one driving mode repre- sented by a lever analogy, which uses clutches to switch among modes, in order to achieve high fuel efficiency and driveability in different driving conditions such as launching (high-torque low-speed) and high- way cruising (low

  12. The Fluid Mechanics of Carbon Dioxide Sequestration

    E-print Network

    Neufeld, Jerome A.

    the application of the research to architectural fluid mechanics is discussed. ” 2012 Elsevier Ltd. All rights with an adjacent volume of ambient fluid is a common problem in fluid mechanics with numerous examples in natural Department of Mechanical Engineering, University of Alberta, Edmonton, AB T6G 2G8, Canada a r t i c l e i n f

  13. Fluid imbalance

    MedlinePLUS

    Water imbalance ... the skin). Many medical problems can cause fluid imbalance: It is common to retain large amounts of ... results in extreme thirst and dehydration. A fluid imbalance is often associated with imbalances of sodium ( hyponatremia , ...

  14. GC-ASM: Synergistic Integration of Graph-Cut and Active Shape Model Strategies for Medical Image Segmentation

    PubMed Central

    Chen, Xinjian; Udupa, Jayaram K.; Alavi, Abass; Torigian, Drew A.

    2013-01-01

    Image segmentation methods may be classified into two categories: purely image based and model based. Each of these two classes has its own advantages and disadvantages. In this paper, we propose a novel synergistic combination of the image based graph-cut (GC) method with the model based ASM method to arrive at the GC-ASM method for medical image segmentation. A multi-object GC cost function is proposed which effectively integrates the ASM shape information into the GC framework. The proposed method consists of two phases: model building and segmentation. In the model building phase, the ASM model is built and the parameters of the GC are estimated. The segmentation phase consists of two main steps: initialization (recognition) and delineation. For initialization, an automatic method is proposed which estimates the pose (translation, orientation, and scale) of the model, and obtains a rough segmentation result which also provides the shape information for the GC method. For delineation, an iterative GC-ASM algorithm is proposed which performs finer delineation based on the initialization results. The proposed methods are implemented to operate on 2D images and evaluated on clinical chest CT, abdominal CT, and foot MRI data sets. The results show the following: (a) An overall delineation accuracy of TPVF > 96%, FPVF < 0.6% can be achieved via GC-ASM for different objects, modalities, and body regions. (b) GC-ASM improves over ASM in its accuracy and precision to search region. (c) GC-ASM requires far fewer landmarks (about 1/3 of ASM) than ASM. (d) GC-ASM achieves full automation in the segmentation step compared to GC which requires seed specification and improves on the accuracy of GC. (e) One disadvantage of GC-ASM is its increased computational expense owing to the iterative nature of the algorithm. PMID:23585712

  15. FLUID- THERMODYNAMIC AND TRANSPORT PROPERTIES OF FLUIDS (IBM PC VERSION)

    NASA Technical Reports Server (NTRS)

    Fessler, T. E.

    1994-01-01

    The accurate computation of the thermodynamic and transport properties of fluids is a necessity for many engineering calculations. The FLUID program was developed to calculate the thermodynamic and transport properties of pure fluids in both the liquid and gas phases. Fluid properties are calculated using a simple gas model, empirical corrections, and an efficient numerical interpolation scheme. FLUID produces results that are in very good agreement with measured values, while being much faster than older more complex programs developed for the same purpose. A Van der Waals equation of state model is used to obtain approximate state values. These values are corrected for real-gas effects by model correction factors obtained from tables based on experimental data. These tables also accurately compensate for the special circumstances which arise whenever phase conditions occur. Viscosity and thermal conductivity values are computed directly from tables. Interpolation within tables is based on Lagrange's three point formula. A set of tables must be generated for each fluid implemented. FLUID currently contains tables for nine fluids including dry air and steam. The user can add tables for any fluid for which adequate thermal property data is available. The FLUID routine is structured so that it may easily be incorporated into engineering programs. The IBM 360 version of FLUID was developed in 1977. It is written in FORTRAN IV and has been implemented on an IBM 360 with a central memory requirement of approximately 222K of 8 bit bytes. The IBM PC version of FLUID is written in Microsoft FORTRAN 77 and has been implemented on an IBM PC with a memory requirement of 128K of 8 bit bytes. The IBM PC version of FLUID was developed in 1986.

  16. FLUID- THERMODYNAMIC AND TRANSPORT PROPERTIES OF FLUIDS (IBM VERSION)

    NASA Technical Reports Server (NTRS)

    Fessler, T. E.

    1994-01-01

    The accurate computation of the thermodynamic and transport properties of fluids is a necessity for many engineering calculations. The FLUID program was developed to calculate the thermodynamic and transport properties of pure fluids in both the liquid and gas phases. Fluid properties are calculated using a simple gas model, empirical corrections, and an efficient numerical interpolation scheme. FLUID produces results that are in very good agreement with measured values, while being much faster than older more complex programs developed for the same purpose. A Van der Waals equation of state model is used to obtain approximate state values. These values are corrected for real-gas effects by model correction factors obtained from tables based on experimental data. These tables also accurately compensate for the special circumstances which arise whenever phase conditions occur. Viscosity and thermal conductivity values are computed directly from tables. Interpolation within tables is based on Lagrange's three point formula. A set of tables must be generated for each fluid implemented. FLUID currently contains tables for nine fluids including dry air and steam. The user can add tables for any fluid for which adequate thermal property data is available. The FLUID routine is structured so that it may easily be incorporated into engineering programs. The IBM 360 version of FLUID was developed in 1977. It is written in FORTRAN IV and has been implemented on an IBM 360 with a central memory requirement of approximately 222K of 8 bit bytes. The IBM PC version of FLUID is written in Microsoft FORTRAN 77 and has been implemented on an IBM PC with a memory requirement of 128K of 8 bit bytes. The IBM PC version of FLUID was developed in 1986.

  17. Boger Fluids

    Microsoft Academic Search

    David F. James

    2009-01-01

    A Boger fluid is an elastic liquid with a constant viscosity. Because the viscosity is independent of shear rate or nearly so, elastic effects can be separated from viscous effects in viscoelastic flows because the latter effects can be determined with Newtonian fluids. Boger fluids are dilute polymer solutions generally made with a solvent sufficiently viscous that stresses due to

  18. Fluid Mechanics.

    ERIC Educational Resources Information Center

    Drazin, Philip

    1987-01-01

    Outlines the contents of Volume II of "Principia" by Sir Isaac Newton. Reviews the contributions of subsequent scientists to the physics of fluid dynamics. Discusses the treatment of fluid mechanics in physics curricula. Highlights a few of the problems of modern research in fluid dynamics. Shows that problems still remain. (CW)

  19. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 Summer Heat Transfer Conference

    E-print Network

    Bahrami, Majid

    , a growing interest exists to reduce the diesel engine idling time due to cabin air conditioning (A filtered air; internal and external AC power for hotel loads, block heating, and chilled or frozen of a standard compressor air conditioner. Fuel cell powered systems (FCS) are investigated to replace batteries

  20. Proceedings of ASME: ASME Turbo Expo 2004 Power for Land, Sea and Air

    E-print Network

    Zha, Gecheng

    AFRL/PRTF 1950 Fifth St. Bldg. 18D Wright-Patterson AFB, OH 45433 Nicholas J. Kuprowicz AFRL/PRTA 1950 Engineering Coral Gables, FL 33124 William Copenhaver AFRL/PRT 1950 Fifth St. Bldg. 18D Wright-Patterson AFB

  1. 115-year-old society knows how to reach young scientists: ASM Young Ambassador Program.

    PubMed

    Karczewska-Golec, Joanna

    2014-11-10

    With around 40,000 members in more than 150 countries, American Society for Microbiology (ASM) faces the challenge of meeting very diverse needs of its increasingly international members base. The newly launched ASM Young Ambassador Program seeks to aid the Society in this effort. Equipped with ASM conceptual support and financing, Young Ambassadors (YAs) design and pursue country-tailored approaches to strengthen the Society's ties with local microbiological communities. In a trans-national setting, the active presence of YAs at important scientific events, such as 16th European Congress on Biotechnology, forges new interactions between ASM and sister societies. The paper presents an overview of the Young Ambassadors-driven initiatives at both global and country levels, and explores the topic of how early-career scientists can contribute to science diplomacy and international relations. PMID:25449541

  2. 1 Copyright 2009 by ASME Proceedings of BioMed2009

    E-print Network

    Tang, William C

    1 Copyright © 2009 by ASME Proceedings of BioMed2009 4th Frontiers in Biomedical Devices Conference June 8-9, 2009, Irvine, California, USA BioMed2009-83051 PARAFFIN ACTUATED MICROMIRROR FOR ENDOSCOPIC

  3. Fatigue evaluation of ASME Class 1 components considering the environmental effects

    SciTech Connect

    Neto, M.M. [Brazilian Commission for the Nuclear Energy, Sao Paulo (Brazil); Maneschy, E. [FURNAS/COPESP, Sao Paulo (Brazil)

    1995-12-01

    A discussion considering fatigue design basis (FDB) and fatigue operating basis (FOB) approaches is presented. These two concepts are applied to evaluate the lifetime of typical ASME 3 class 1 components through simplified and detailed stress analysis. The cumulative usage factor (CUF) calculated using S-N fatigue curves available in the ASME 3 are compared to those obtained by S-N curves modified by the reactor environment. Some recommendations are presented to assess the fatigue in nuclear power plants structures.

  4. Compressor bleed cooling fluid feed system

    DOEpatents

    Donahoo, Eric E; Ross, Christopher W

    2014-11-25

    A compressor bleed cooling fluid feed system for a turbine engine for directing cooling fluids from a compressor to a turbine airfoil cooling system to supply cooling fluids to one or more airfoils of a rotor assembly is disclosed. The compressor bleed cooling fluid feed system may enable cooling fluids to be exhausted from a compressor exhaust plenum through a downstream compressor bleed collection chamber and into the turbine airfoil cooling system. As such, the suction created in the compressor exhaust plenum mitigates boundary layer growth along the inner surface while providing flow of cooling fluids to the turbine airfoils.

  5. A Minimal Path Searching Approach for Active Shape Model (ASM)-based Segmentation of the Lung

    PubMed Central

    Guo, Shengwen; Fei, Baowei

    2013-01-01

    We are developing a minimal path searching method for active shape model (ASM)-based segmentation for detection of lung boundaries on digital radiographs. With the conventional ASM method, the position and shape parameters of the model points are iteratively refined and the target points are updated by the least Mahalanobis distance criterion. We propose an improved searching strategy that extends the searching points in a fan-shape region instead of along the normal direction. A minimal path (MP) deformable model is applied to drive the searching procedure. A statistical shape prior model is incorporated into the segmentation. In order to keep the smoothness of the shape, a smooth constraint is employed to the deformable model. To quantitatively assess the ASM-MP segmentation, we compare the automatic segmentation with manual segmentation for 72 lung digitized radiographs. The distance error between the ASM-MP and manual segmentation is 1.75 Ī 0.33 pixels, while the error is 1.99 Ī 0.45 pixels for the ASM. Our results demonstrate that our ASM-MP method can accurately segment the lung on digital radiographs. PMID:24386531

  6. 1 Copyright 2003 by ASME Proceedings of IMECE'03

    E-print Network

    Frechette, Luc G.

    component, with emphasis on a multistage, planar, radial microturbine and a spiral groove viscous pump engines, such as gas turbine engines ([2]-[4]), internal combustion engines (rotary Wankel [5] or piston with an integrated pump and g

  7. Intrinsically irreversible heat engine

    DOEpatents

    Wheatley, J.C.; Swift, G.W.; Migliori, A.

    1984-01-01

    A class of heat engines based on an intrinsically irreversible heat transfer process is disclosed. In a typical embodiment the engine comprises a compressible fluid that is cyclically compressed and expanded while at the same time being driven in reciprocal motion by a positive displacement drive means. A second thermodynamic medium is maintained in imperfect thermal contact with the fluid and bears a broken thermodynamic symmetry with respect to the fluid. The second thermodynamic medium is a structure adapted to have a low fluid flow impedance with respect to the compressible fluid, and which is further adapted to be in only moderate thermal contact with the fluid. In operation, thermal energy is pumped along the second medium due to a phase lag between the cyclical heating and cooling of the fluid and the resulting heat conduction between the fluid and the medium. In a preferred embodiment the engine comprises an acoustical drive and a housing containing a gas which is driven at a resonant frequency so as to be maintained in a standing wave. Operation of the engine at acoustic frequencies improves the power density and coefficient of performance. The second thermodynamic medium can be coupled to suitable heat exchangers to utilize the engine as a simple refrigeration device having no mechanical moving parts. Alternatively, the engine is reversible in function so as to be utilizable as a prime mover by coupling it to suitable sources and sinks of heat.

  8. Intrinsically irreversible heat engine

    DOEpatents

    Wheatley, John C. (Los Alamos, NM); Swift, Gregory W. (Los Alamos, NM); Migliori, Albert (Santa Fe, NM)

    1984-01-01

    A class of heat engines based on an intrinsically irreversible heat transfer process is disclosed. In a typical embodiment the engine comprises a compressible fluid that is cyclically compressed and expanded while at the same time being driven in reciprocal motion by a positive displacement drive means. A second thermodynamic medium is maintained in imperfect thermal contact with the fluid and bears a broken thermodynamic symmetry with respect to the fluid. the second thermodynamic medium is a structure adapted to have a low fluid flow impedance with respect to the compressible fluid, and which is further adapted to be in only moderate thermal contact with the fluid. In operation, thermal energy is pumped along the second medium due to a phase lag between the cyclical heating and cooling of the fluid and the resulting heat conduction between the fluid and the medium. In a preferred embodiment the engine comprises an acoustical drive and a housing containing a gas which is driven at a resonant frequency so as to be maintained in a standing wave. Operation of the engine at acoustic frequencies improves the power density and coefficient of performance. The second thermodynamic medium can be coupled to suitable heat exchangers to utilize the engine as a simple refrigeration device having no mechanical moving parts. Alternatively, the engine is reversible in function so as to be utilizable as a prime mover by coupling it to suitable sources and sinks of heat.

  9. Intrinsically irreversible heat engine

    DOEpatents

    Wheatley, J.C.; Swift, G.W.; Migliori, A.

    1984-12-25

    A class of heat engines based on an intrinsically irreversible heat transfer process is disclosed. In a typical embodiment the engine comprises a compressible fluid that is cyclically compressed and expanded while at the same time being driven in reciprocal motion by a positive displacement drive means. A second thermodynamic medium is maintained in imperfect thermal contact with the fluid and bears a broken thermodynamic symmetry with respect to the fluid. The second thermodynamic medium is a structure adapted to have a low fluid flow impedance with respect to the compressible fluid, and which is further adapted to be in only moderate thermal contact with the fluid. In operation, thermal energy is pumped along the second medium due to a phase lag between the cyclical heating and cooling of the fluid and the resulting heat conduction between the fluid and the medium. In a preferred embodiment the engine comprises an acoustical drive and a housing containing a gas which is driven at a resonant frequency so as to be maintained in a standing wave. Operation of the engine at acoustic frequencies improves the power density and coefficient of performance. The second thermodynamic medium can be coupled to suitable heat exchangers to utilize the engine as a simple refrigeration device having no mechanical moving parts. Alternatively, the engine is reversible in function so as to be utilizable as a prime mover by coupling it to suitable sources and sinks of heat. 11 figs.

  10. ASME PTC 47 -- Calculation of overall IGCC plant performance

    SciTech Connect

    Xiong, T.; Horazak, D.A.

    1999-07-01

    An integrated gasification combined cycle (IGCC) plant is a combined chemical and power system that converts coal or other unrefined fuel into clean gaseous fuel, electric power, and other byproducts. The conversion process requires interactions among the gasification, gas cleaning, air or oxygen production, power and steam generation systems. Overall performance testing of IGCC plants. however, is based only on the streams that cross the overall plant boundary. This paper describes the calculation procedures required to conduct a fair and accurate performance test of an IGCC plant, as proposed for ASME Performance Test Code 47. Discussions include identification of parameters to be measured, calculations needed to evaluate performance, and corrections to performance data for test conditions that differ from reference conditions.

  11. Integrated use of design aspects of new ASME pressure vessel code with requalification aspects of the ASME High Pressure Systems Standard

    SciTech Connect

    Fryer, D.M. [High Pressure Engineering and Safety, Fairview, PA (United States); Aggarwal, M.C. [Gannon Univ., Erie, PA (United States). Mechanical Engineering Dept.

    1996-12-01

    This paper implements various procedures in the design articles of the proposed ASME BPV Section VIII, Division 3 to re-evaluate the compound shell of a 15 year old large hot isostatic high pressure vessel. The analysis then is subjected to the requalification procedures of the ASME High Pressure Systems Standard (HPS-1994) to create an updated periodic examination program. The purpose of the paper is to show how the two codes mesh for either new or existing vessels to provide rational guidance for obtaining optimum cyclic service performance.

  12. Stochastic interpenetration of fluids

    SciTech Connect

    Steinkamp, M.J.; Clark, T.T.; Harlow, F.H.

    1995-11-01

    We describe a spectral approach to the investigation of fluid instability, generalized turbulence, and the interpenetration of fluids across an interface. The technique also applies to a single fluid with large variations in density. Departures of fluctuating velocity components from the local mean are far subsonic, but the mean Mach number can be large. Validity of the description is demonstrated by comparisons with experiments on turbulent mixing due to the late stages of Rayleigh-Taylor instability, when the dynamics become approximately self-similar in response to a constant body force. Generic forms for anisotropic spectral structure are described and used as a basis for deriving spectrally integrated moment equations that can be incorporated into computer codes for scientific and engineering analyses.

  13. Education and research in fluid dynamics

    NASA Astrophysics Data System (ADS)

    Lůpez GonzŠlez-Nieto, P.; Redondo, J. M.; Cano, J. L.

    2009-04-01

    Fluid dynamics constitutes an essential subject for engineering, since auronautic engineers (airship flights in PBL, flight processes), industrial engineers (fluid transportation), naval engineers (ship/vessel building) up to agricultural engineers (influence of the weather conditions on crops/farming). All the above-mentioned examples possess a high social and economic impact on mankind. Therefore, the fluid dynamics education of engineers is very important, and, at the same time, this subject gives us an interesting methodology based on a cycle relation among theory, experiments and numerical simulation. The study of turbulent plumes -a very important convective flow- is a good example because their theoretical governing equations are simple; it is possible to make experimental plumes in an aesy way and to carry out the corresponding numerical simulatons to verify experimental and theoretical results. Moreover, it is possible to get all these aims in the educational system (engineering schools or institutions) using a basic laboratory and the "Modellus" software.

  14. Stable fluids

    Microsoft Academic Search

    Jos Stam

    1999-01-01

    Building animation tools for fluid-like motions is an important and challenging problem with many applications in computer graphics. The use of physics-based models for fluid flow can greatly assist in creating such tools. Physical models, unlike key frame or pro- cedural based techniques, permit an animator to almost effortlessly create interesting, swirling fluid-like behaviors. Also, the interac- tion of flows

  15. A look at ongoing activities of ASME Sections II and III materials, fabrication and examination -- ASME Section III

    SciTech Connect

    Borter, W.H. [VECTRA Technologies, Inc., San Jose, CA (United States)

    1995-12-01

    This paper has been limited to the discussion of the proposed revision to Code Case N-483-2 ``Alternative Rules to the Provisions of NCA-3800, Requirements for Purchase of Material -- Section 3, Division 1`` due to the important of this Case in providing an insight to the current activities of ASME Section 3 to place the importance on the verification of the actual item (or hardware) and therefore shifting away from the reliance on associated paperwork for the verification of the material. The goal of this paper is to provide the future users of the Code Case the understand of the basis that the Code committees used in the development of this proposed revision to the Case.

  16. A cycle simulation of coal particle fueled reciprocating internal-combustion engines

    E-print Network

    Rosegay, Kenneth Harold

    1982-01-01

    A CYCLE SIMULATION OF COAL PARTICLE FUELED RECIPROCATING INTERNAL-COMBUSTION ENGINES A Thesis by KENNETH HAROLD ROSEGAY Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE December 1982 Major Subject: Mechanical Engineering A CYCLE SIMULATION OF COAL PARTICLE FUELED RECIPROCATING INTERNAL-COMBUSTION ENGINES A Thesis by KENNETH HAROLD ROSEGAY Approved as to style and content by; J. A. Caton...

  17. The use of the principle of expected value in engineering design

    E-print Network

    Golondzinier, Theodore Matthew

    1970-01-01

    THE USE OF THE PRINCIPLE OF EXPECTED VALUE IN ENGINEERING DESIGN A Thesis by THEODORE MATTHEW GOLONDZINIER Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE January 1970 Major Subject: Industrial Engineering THE USE OF THE PRINCIPLE OF EXPECTED VALUE IN ENGINEERING DESIGN A Thesis by THEODORE MATTHEW GOLONDZINIER Approved as to style and content by: Chairman and Head of Department) (Member...

  18. 1996 ASME IMECE Conference Proceedings: 5th Annual Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, Atlanta, Georgia. pg. 583-590.

    E-print Network

    1996 ASME IMECE Conference Proceedings: 5th Annual Symposium on Haptic Interfaces for Virtual) limited incline of the shaft pivoted in the abdominal wall. #12;1996 ASME IMECE Conference Proceedings: 5

  19. 1996 ASME IMECE Conference Proceedings: 5th Annual Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, Atlanta, Georgia. pg. 583590.

    E-print Network

    1996 ASME IMECE Conference Proceedings: 5th Annual Symposium on Haptic Interfaces for Virtual) limited incline of the shaft pivoted in the abdominal wall. #12; 1996 ASME IMECE Conference Proceedings: 5

  20. Faculty of Engineering Electrical and Computer

    E-print Network

    Faculty of Engineering Electrical and Computer Engineering Electrical and Computer Engineering offers you a diverse range of exciting opportunities in high-tech industries. As an electrical engineer in the engineering disciplines ∑ Thermodynamics, fluids and heat transfer #12;Electrical and Computer Engineering

  1. College of Engineering & Computer Science Civil Engineering Name

    E-print Network

    Mather, Patrick T.

    College of Engineering & Computer Science Civil Engineering Name Fall 2010 SUID Oakton Community 212 ELE231 Elec. Engr. Fundamentals I (3 or 4) MAE251 Thermodynamics (4) CIVIL ENGINEERING (41) D=16.00 CIE272 Civil Engineering Analysis 3 CIE274 Civil & Environmental Engr. Syst 3 CIE327/MAE341 Fluid

  2. College of Engineering & Computer Science Civil Engineering Name

    E-print Network

    Mather, Patrick T.

    College of Engineering & Computer Science Civil Engineering Name Fall 2010 SUID LaGuardia Community. Fundamentals I (3 or 4) MAE213 MAE251 Thermodynamics (4) MAE251 CIVIL ENGINEERING (41) D=16.00 CIE272 Civil Engineering Analysis 3 CIE274 Civil & Environmental Engr. Syst 3 CIE327/MAE341 Fluid Mechanics 4 CIE331

  3. Numerical simulation of fluid field and in vitro three-dimensional fabrication of tissue-engineered bones in a rotating bioreactor and in vivo implantation for repairing segmental bone defects.

    PubMed

    Song, Kedong; Wang, Hai; Zhang, Bowen; Lim, Mayasari; Liu, Yingchao; Liu, Tianqing

    2013-03-01

    In this paper, two-dimensional flow field simulation was conducted to determine shear stresses and velocity profiles for bone tissue engineering in a rotating wall vessel bioreactor (RWVB). In addition, in vitro three-dimensional fabrication of tissue-engineered bones was carried out in optimized bioreactor conditions, and in vivo implantation using fabricated bones was performed for segmental bone defects of Zelanian rabbits. The distribution of dynamic pressure, total pressure, shear stress, and velocity within the culture chamber was calculated for different scaffold locations. According to the simulation results, the dynamic pressure, velocity, and shear stress around the surface of cell-scaffold construction periodically changed at different locations of the RWVB, which could result in periodical stress stimulation for fabricated tissue constructs. However, overall shear stresses were relatively low, and the fluid velocities were uniform in the bioreactor. Our in vitro experiments showed that the number of cells cultured in the RWVB was five times higher than those cultured in a T-flask. The tissue-engineered bones grew very well in the RWVB. This study demonstrates that stress stimulation in an RWVB can be beneficial for cell/bio-derived bone constructs fabricated in an RWVB, with an application for repairing segmental bone defects. PMID:23054889

  4. 1 Copyright 2011 by ASME Proceedings of the ASME 2011 Pacific Rim Technical Conference & Exposition on Packaging and Integration of

    E-print Network

    Bahrami, Majid

    WITH RECTANGULAR FINS: A PASSIVE THERMAL SOLUTION A. Tamayol Mechatronic Systems Engineering, School of Engineering. Bahrami Mechatronic Systems Engineering, School of Engineering Science, Simon Fraser University, BC Science, Simon Fraser University, BC, Canada ali_tamayol@sfu.ca F. McGregor Mechatronic Systems

  5. 1 Copyright 2012 by ASME Proceedings of the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels

    E-print Network

    Bahrami, Majid

    Conversion (LAEC) Mechatronic Systems Engineering School of Engineering Science Simon Fraser University Surrey, British Columbia, Canada E-mail: ptaherib@sfu.ca Majid Bahrami Associate Professor Mechatronic Systems Engineering School of Engineering Science Simon Fraser University Surrey, British Columbia, Canada

  6. 1 Copyright ICNMM2008 by ASME Proceedings of the Sixth International ASME Conference on Nanochannels, Microchannels and Minichannels

    E-print Network

    Bahrami, Majid

    Engineering, University of Victoria, BC, Canada atamayol@uvic.ca M. Bahrami Mechatronic Systems Engineering, School of Engineering Science, Simon Fraser University, BC, Canada mbahrami@sfu.ca P. Taheri Department of Mechanical Engineering, University of Victoria, BC, Canada peymant@uvic.ca ABSTRACT In the present study

  7. Orbital Fluid Transfer System

    NASA Technical Reports Server (NTRS)

    Johnston, A. S., (Nick); Ryder, Mel; Tyler, Tony R.

    1998-01-01

    An automated fluid and power interface system needs to be developed for future space missions which require on orbit consumable replenishment. Current method of fluid transfer require manned vehicles and extravehicular activity. Currently the US does not have an automated capability for consumable transfer on-orbit. This technology would benefit both Space Station and long duration satellites. In order to provide this technology the Automated Fluid Interface System (AFIS) was developed. The AFIS project was an advanced development program aimed at developing a prototype satellite servicer for future space operations. This mechanism could transfer propellants, cryogens, fluids, gasses, electrical power, and communications from a tanker unit to the orbiting satellite. The development of this unit was a cooperative effort between Marshall Space Flight Center in Huntsville, Alabama, and Moog, Inc. in East Aurora, New York. An engineering model was built and underwent substantial development testing at Marshall Space Flight Center (MSFC). While the AFIS is not suitable for spaceflight, testing and evaluation of the AFIS provided significant experience which would be beneficial in building a flight unit. The lessons learned from testing the AFIS provided the foundation for the next generation fluid transfer mechanism, the Orbital Fluid Transfer System (OFTS). The OFTS project was a study contract with MSFC and Moog, Inc. The OFTS was designed for the International Space Station (ISS), but its flexible design could used for long duration satellite missions and other applications. The OFTS was designed to be used after docking. The primary function was to transfer bipropellants and high pressure gases. The other items addressed by this task included propellant storage, hardware integration, safety and control system issues. A new concept for high pressure couplings was also developed. The results of the AFIS testing provided an excellent basis for the OFTS design. The OFTS meet the servicing requirements for ISS and could also provide the automated fluid and power interface system needed for on orbit consumable resupply of spacecraft into the new century.

  8. MED-VaL 10, Manufacturing Science and Engineering --1999 Modeling of Gear Bobbing

    E-print Network

    Aristomenis, Antoniadis

    MED-VaL 10, Manufacturing Science and Engineering -- 1999 ASME 1999 Modeling of Gear Bobbing Part models for gear hobbing were presented in the first pan of this paper. To determine the constants the prediction of the tool wear accomplishment in gear hobbing. On that account the wear development can

  9. Fluid dynamics of dilatant fluid

    E-print Network

    Hiizu Nakanishi; Shin-ichiro Nagahiro; Namiko Mitarai

    2011-12-20

    Dense mixture of granules and liquid often shows a sever shear thickening and is called a dilatant fluid. We construct a fluid dynamics model for the dilatant fluid by introducing a phenomenological state variable for a local state of dispersed particles. With simple assumptions for an equation of the state variable, we demonstrate that the model can describe basic features of the dilatant fluid such as the stress-shear rate curve that represents discontinuous severe shear thickening, hysteresis upon changing shear rate, instantaneous hardening upon external impact. Analysis of the model reveals that the shear thickening fluid shows an instability in a shear flow for some regime and exhibits {\\it the shear thickening oscillation}, i.e. the oscillatory shear flow alternating between the thickened and the relaxed states. Results of numerical simulations are presented for one and two-dimensional systems.

  10. 1 Copyright 2005 by ASME Proceedings of ICMM2005

    E-print Network

    Kandlikar, Satish

    common in a number of industrial applications. The heat and mass transfer enhancements from the small heat exchanger (MCHX). The design of supporting equipment such as the fluid pump and the secondary heat that the fluid flow in microchannels is further reaching than just efficient heat transfer. It could open up

  11. Fluid inflation

    SciTech Connect

    Chen, X. [Centre for Theoretical Cosmology, DAMTP, University of Cambridge, Cambridge CB3 0WA (United Kingdom); Firouzjahi, H. [School of Astronomy, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Namjoo, M.H. [School of Physics, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Sasaki, M., E-mail: x.chen@damtp.cam.ac.uk, E-mail: firouz@ipm.ir, E-mail: mh.namjoo@ipm.ir, E-mail: misao@yukawa.kyoto-u.ac.jp [Yukawa Institute for theoretical Physics, Kyoto University, Kyoto 606-8502 (Japan)

    2013-09-01

    In this work we present an inflationary mechanism based on fluid dynamics. Starting with the action for a single barotropic perfect fluid, we outline the procedure to calculate the power spectrum and the bispectrum of the curvature perturbation. It is shown that a perfect barotropic fluid naturally gives rise to a non-attractor inflationary universe in which the curvature perturbation is not frozen on super-horizon scales. We show that a scale-invariant power spectrum can be obtained with the local non-Gaussianity parameter f{sub NL} = 5/2.

  12. Wellbore fluid

    SciTech Connect

    Dorsey, D.L.; Corley, W.T.

    1983-12-27

    A clay-based or clay-free aqueous thixotropic wellbore fluid having improved fluid loss control, desirable flow characteristics and low shale sensitivity for use in drilling a well comprising water or a brine base including an effective amount of an additive comprising a crosslinked potato starch, a heteropolysaccharide derived from a carbohydrate by bacteria of the genus Xanthomonas, and hydroxyethylcellulose or carboxymethylcellulose, is disclosed. This drilling fluid has been found to be nondamaging to the formations through which the well is drilled.

  13. Fluid Power: A Force for Change

    NSDL National Science Digital Library

    Minnesota Channel of Twin Cities Public Television

    Fluid Power: A Force for Change is a 30-minute exploration of the fluid power industry and its positive effects on our current and future society. This program emphasizes current research in fluid power as well as the promise it holds for a rising generation of young engineers looking for exciting and socially-responsible careers. This documentary was produced by the Minnesota Channel of Twin Cities Public Television in cooperation with the National Fluid Power Association (NFPA) and the Center for Compact and Efficient Fluid Power (CCEFP).

  14. 1 Copyright 2009 by ASME Proceedings of the IPACK2009

    E-print Network

    Santa Cruz, CA, USA jhpark@soe.ucsc.edu Ali Shakouri Electrical Engineering Dept. Univ. of California, Santa Cruz Santa Cruz, CA, USA ali@soe.ucsc.edu Sung-Mo Kang School of Engineering Univ. of California

  15. CRITICALITY CURVES FOR PLUTONIUM HYDRAULIC FLUID MIXTURES

    SciTech Connect

    WITTEKIND WD

    2007-10-03

    This Calculation Note performs and documents MCNP criticality calculations for plutonium (100% {sup 239}Pu) hydraulic fluid mixtures. Spherical geometry was used for these generalized criticality safety calculations and three geometries of neutron reflection are: {sm_bullet}bare, {sm_bullet}1 inch of hydraulic fluid, or {sm_bullet}12 inches of hydraulic fluid. This document shows the critical volume and critical mass for various concentrations of plutonium in hydraulic fluid. Between 1 and 2 gallons of hydraulic fluid were discovered in the bottom of HA-23S. This HA-23S hydraulic fluid was reported by engineering to be Fyrquel 220. The hydraulic fluid in GLovebox HA-23S is Fyrquel 220 which contains phosphorus. Critical spherical geometry in air is calculated with 0 in., 1 in., or 12 inches hydraulic fluid reflection.

  16. ASME Section XI trends in developing nuclear codes and standards

    SciTech Connect

    Hedden, O.F. [ABB Combustion Engineering Nuclear Operations, Windsor, CT (United States)

    1995-12-01

    When the author began working on nuclear power many years ago, he knew that perfection was the only acceptable technical standard. Unfortunately, this became an obsession with perfection that has had unfavorable consequences in some of the non-technical areas of work in ASME nuclear power Codes and Standards. However, the economic problems of the nuclear power industry now demand a more pragmatic approach if the industry is to continue. Not only does each item considered for action need to be evaluated to criteria that may in some cases be less than perfection, but one needs to consider whether it contributes tangibly to either safety or to reduction in technical or administrative burden. These should be the governing, criteria. The introduction of risk-based inspection methodologies will certainly be an important element in doing this successfully. One needs to consider these criteria collectively, as one discusses each item at the committee level, and individually, as one votes on each item. In the past, the author has been concerned that the industry was not acting quickly enough in taking advantage of opportunities offered by the Code to increase safety or to reduce cost. While he still has some concern, he thinks communication channels have been greatly improved. Now he is becoming more concerned with both the collective and individual actions that delay beneficial changes. The second part of the author`s talk has to do with the relevance of the code committees in the nuclear power industry regulatory process.

  17. Fluid Shifts

    NASA Technical Reports Server (NTRS)

    Stenger, M. B.; Hargens, A.; Dulchavsky, S.; Ebert, D.; Lee, S.; Laurie, S.; Garcia, K.; Sargsyan, A.; Martin, D.; Lui, J.; Macias, B.; Arbeille, P.; Danielson, R.; Chang, D.; Gunga, H.; Johnston, S.; Westby, C.; Ribeiro, L.; Ploutz-Snyder, R.; Smith, S.

    2015-01-01

    INTRODUCTION: Mechanisms responsible for the ocular structural and functional changes that characterize the visual impairment and intracranial pressure (ICP) syndrome (VIIP) are unclear, but hypothesized to be secondary to the cephalad fluid shift experienced in spaceflight. This study will relate the fluid distribution and compartmentalization associated with long-duration spaceflight with VIIP symptoms. We also seek to determine whether the magnitude of fluid shifts during spaceflight, as well as the VIIP-related effects of those shifts, can be predicted preflight with acute hemodynamic manipulations, and also if lower body negative pressure (LBNP) can reverse the VIIP effects. METHODS: Physiologic variables will be examined pre-, in- and post-flight in 10 International Space Station crewmembers including: fluid compartmentalization (D2O and NaBr dilution); interstitial tissue thickness (ultrasound); vascular dimensions and dynamics (ultrasound and MRI (including cerebrospinal fluid pulsatility)); ocular measures (optical coherence tomography, intraocular pressure, ultrasound); and ICP measures (tympanic membrane displacement, otoacoustic emissions). Pre- and post-flight measures will be assessed while upright, supine and during 15 deg head-down tilt (HDT). In-flight measures will occur early and late during 6 or 12 month missions. LBNP will be evaluated as a countermeasure during HDT and during spaceflight. RESULTS: The first two crewmembers are in the preflight testing phase. Preliminary results characterize the acute fluid shifts experienced from upright, to supine and HDT postures (increased stroke volume, jugular dimensions and measures of ICP) which are reversed with 25 millimeters Hg LBNP. DISCUSSION: Initial results indicate that acute cephalad fluid shifts may be related to VIIP symptoms, but also may be reversible by LBNP. The effect of a chronic fluid shift has yet to be evaluated. Learning Objectives: Current spaceflight VIIP research is described, including novel hardware and countermeasures.

  18. Nonlinear dynamics of three dimensional fluid flow separation

    E-print Network

    Surana, Amit

    2007-01-01

    Flow separation (the detachment of fluid from a no-slip boundary) is a major cause of performance loss in engineering devices, including diffusers, airfoils and jet engines. The systematic study of flow separation dates ...

  19. Flowmeter for Clear and Translucent Fluids

    NASA Technical Reports Server (NTRS)

    White, P. R.

    1985-01-01

    Transducer with only three moving parts senses flow of clear or translucent fluid. Displacement of diaphragm by force of flow detected electrooptically and displayed by panel meter or other device. Transducer used to measure flow of gasoline to automobile engine.

  20. Proceedings of the 1998 ASME energy sources technology conference (ETCE`98)

    SciTech Connect

    NONE

    1998-12-31

    The approximately 160 papers in these proceedings have been arranged under the following topical sections: (1) Computers in engineering -- Technical databases and applied computing; Workgroup computing; Software process models; Internet computing; (2) Drilling technology -- Coiled tubing technology; Drilling dynamics and drilling systems; Advances in drill bits; Advances in percussion drilling; Testing field and laboratory; Novel/scientific drilling; Advances in drilling fluids; (3) Emerging energy technology -- Spray and combustion; Fuel cells; Flammability and flames; Fuels and engines; Miscellaneous combustion topics; (4) Composite materials design and analysis -- Interaction of cracks, notched strength, and free edge effects in laminated composites; Stress analysis of composites; Material response identification, property alteration, damage detection, and environmental effects; Wave propagation in elastic medium, numerical methods for composites; Process and property characterization of advanced materials; Fatigue degradation, viscoplasticity in composites, and numerical simulation of reinforced concrete structures; Aging, creep, plastic anisotropy, joining of different materials, and time history analysis; Shock fronts in compressible medium; Numerical simulation of propagating fronts and shocks in compressible medium; Computational methods and numerical simulation; Analysis and modeling techniques; (5) Manufacturing and services -- Drilling equipment; Process equipment; Patents and intellectual property; Computational methods in manufacturing; (6) Non-destructive evaluation engineering -- NDE applications: Visual inspections; Material property determination/flaw sizing; (7) Offshore engineering and operations -- Environmental and safety issues in offshore operations; Floating production system; Offshore topside facilities; Offshore facility infrastructure; Offshore structures and pipelines; (8) Pipeline engineering and operations -- Pipeline risk management; Pipeline integrity; Evaluation and rehabilitation; Multiphase flow; Pipeline simulation; Pipeline design and operations; New technology; Erosion and corrosion; (9) Plant engineering and reliability -- Reliability methods; Reliability techniques; (10) Petroleum production technology -- Pipeline risk management; Multiphase flow; Multiphase flow equipment; Drilling fluids and completions; Erosion and corrosion; Multiphase pumping; (11) Tribology -- Manufacturing processes; Land-based gas turbine research; Lubrication, tribo-physics and tribo-chemistry. Papers within scope have been processed separately for inclusion on the database.

  1. Fluid Power

    NSDL National Science Digital Library

    Leske, Cavin.

    2002-01-01

    Hydraulics and pneumatics are both forms of fluid power, a common means of driving and controlling mechanical motions. It is one of the three kinds of power, with the other two being mechanical and electrical. Fluid power systems are widely used in most machinery, such as automobiles and construction equipment.The National Fluid Power Association (1) has an excellent introduction to the topic, which includes a general overview and descriptions of over 20 practical applications. It also looks at the current state of fluid power technology and how it has progressed in recent years. For a more detailed discussion of fluid power principles and how hydraulic and pneumatic devices operate, Integrated Publishing (2) offers twelve chapters of material, complete with diagrams. Fluid Power Web (3) is a comprehensive source of information about components, vendors, and software. Ideas and Applications is an especially interesting section, as it periodically gives a new article about clever, innovative ways of using fluid power systems. Every two months, the Fluid Power Society (4) publishes a journal with a few articles about industry news and trends. Three specialized issues are offered each year, and there is an archive with issues that date back to 1998. A complete hydraulics system is broken down into its constituent parts and explained at this Web site (5). The author uses many drawings and animations to illustrate the physical processes involved in hydraulics. The Institute of Hydraulics and Automation (6), located at the University of Tampere in Finland, has a very active research program with many focus areas. Telerobotics, mobile hydraulics, cavitation, and virtual testing are all investigated at the institute, and project descriptions in each of these areas are given on the site. The Division of Fluid Power Technology (7) at a Swedish university has developed a digital simulation tool for fluid power system design. Called HOPSAN, the software can be freely downloaded from the Web site to run on the Windows operating system (a Fortran compiler is required for Windows 95 and newer). Students at Purdue University (8) have recently built "what is thought to be the first vehicle that uses water in all of its hydraulic systems." This article highlights the students' achievement and considers the rationale behind this original design.

  2. FDR385884 on 14 March 2011 IOP PUBLISHING FLUID DYNAMICS RESEARCH

    E-print Network

    Boyer, Edmond

    in Fluid Mechanics and Thermal (03/UR/11-09), National School of Engineering of Monastir, Avenue Ibn of Fluid Mechanics and IOP Publishing Ltd Printed in the UK 0169-5983/11/010000+13$33.00 1 #12;Fluid DynFDR385884 on 14 March 2011 IOP PUBLISHING FLUID DYNAMICS RESEARCH Fluid Dyn. Res. 73 (2011) 000000

  3. Magnetic Fluids Deliver Better Speaker Sound Quality

    NASA Technical Reports Server (NTRS)

    2015-01-01

    In the 1960s, Glenn Research Center developed a magnetized fluid to draw rocket fuel into spacecraft engines while in space. Sony has incorporated the technology into its line of slim speakers by using the fluid as a liquid stand-in for the speaker's dampers, which prevent the speaker from blowing out while adding stability. The fluid helps to deliver more volume and hi-fidelity sound while reducing distortion.

  4. A face recognition algorithm based on ASM and Gabor features of key points

    NASA Astrophysics Data System (ADS)

    Wu, Ju; Mei, Lin

    2013-03-01

    In this paper, an algorithm of face recognition based on the active shape model (ASM) and Gabor features of key points was proposed. Firstly AdaBoost algorithm was used to detect the face region in an image. Then the ASM was used to localize the key feature points in the detected facial region. The Gabor features of these points were extracted. Finally the features were classified using support vector machines (SVM). Preliminary experiments on ORL database show promising results of the proposed algorithm. This algorithm can reduce the computational cost efficiently and obtain the features that contribute to classification of faces.

  5. Development of the performance of an alpha-type heat engine by using elbow-bend transposed-fluids heat exchanger as a heater and a cooler

    Microsoft Academic Search

    A. A. El-Ehwany; G. M. Hennes; E. I. Eid; E. A. El-Kenany

    2011-01-01

    In this work, elbow-bend heat exchangers were suggested to be used as a heater and a cooler in an alpha-type Stirling engine. Elbow-bend heat exchanger is a bank of tubes arranged in a quadrant either in line or staggered with different normal and parallel pitches. Eight of such heat exchangers having different dimensions were tested experimentally for steady flow (in

  6. GUIDELINE FOR FLUID MODELING OF ATMOSPHERIC DIFFUSION

    EPA Science Inventory

    The fundamental principles for fluid modeling of flow and dispersion of pollutants in the atmospheric boundary layer are reviewed. The usefulness of fluid models are evaluated from both scientific and engineering viewpoints. Because many detailed decisions must be made during the...

  7. Fluid Mechanics for Sailing Vessel Design

    Microsoft Academic Search

    Jerome H. Milgram

    1998-01-01

    The design of sailing vessels is an ancient art that places an ever-increasing reliance on modern engineering sciences. Fluid mechanics shares the forefront of this reliance along with structural mechanics. This review focuses on the application of fluid mechanics in modern sailing vessel design. It is now common practice to predict sailing performance with what are called velocity prediction computer

  8. Fundamental Issues of Nano-fluid Behavior

    SciTech Connect

    Williams, Wesley C. [Massachusetts Institute of Technology, 77 massachusetts avenue cambridge, ma 02139-4307 (United States)

    2006-07-01

    This paper will elucidate some of the behaviors of nano-fluids other than the abnormal conductivity enhancement, which are of importance to the experimental and engineering use of nano-fluids. Nano-fluid is the common name of any sol colloid involving nano-scale (less than 100 nm) sized particles dispersed within a base fluid. It has been shown previously that the dispersion of nano-particulate metallic oxides into water can increase thermal conductivity up to 30-40% over that of the base fluid and anomalously more than the mere weighed average of the colloid. There is a great potential for the use of nano-fluids as a way to enhance fluid/thermal energy transfer systems. Due to the recentness of nano-fluid science, there are still many issues which have not been fully investigated. This paper should act as a primer for the basic understanding of nano-fluid behavior. Particle size and colloid stability are of key importance to the functionality of nano-fluids. The pH and concentration/loading of nano-fluids can alter the size of the nano-particles and also the stability of the fluids. It will be shown through experiment and colloid theory the importance of these parameters. Furthermore, most of the existing literature uses volume percentage as the measure of particle loading, which can often be misleading. There will be discussion of this and other misleading ideas in nano-fluid science. (author)

  9. SURGICAL ROBOTICS UNDER FLUID POWER

    E-print Network

    Wu, Mingshen

    SURGICAL ROBOTICS UNDER FLUID POWER Devin R. Berg Mechanical Engineering, University of Minnesota less invasive and more complicated. 2 #12;Use of robotics in surgery is continuing to become more prominent. 3 #12;Use of robotics in surgery is continuing to become more prominent. 4 Vanderbilt University

  10. 1 Copyright 2001 by ASME Proceedings of ICFDP7

    E-print Network

    Kasagi, Nobuhide

    and in many industrial applications. In rotating machinery, such as pumps, compressors and gas turbines, great to improve their performance. Coriolis and centrifugal forces affect fluid dynamics inside such rotating

  11. Pattern formation in granular and granular-fluid flows

    Microsoft Academic Search

    Nhat-Hang P. Duong

    2004-01-01

    Particles and suspensions of particles in fluids are regularly used in many engineering disciplines such as catalysis and reaction engineering, environmental engineering, pharmaceutical engineering, etc. A few issues that are commonly encountered include ensuring homogeneity in pharmaceutical suspensions, predicting particle transport in atmospheric and effluent streams, and manufacturing uniform composite materials. Yet the fundamental study of particle motions in granular

  12. Fluid Shifts

    NASA Technical Reports Server (NTRS)

    Stenger, Michael; Hargens, A.; Dulchavsky, S.; Ebert, D.; Lee, S.; Sargsyan, A.; Martin, D.; Lui, J.; Macias, B.; Arbeille, P.; Platts, S.

    2014-01-01

    NASA is focusing on long-duration missions on the International Space Station (ISS) and future exploration-class missions beyond low Earth orbit. Visual acuity changes observed after short-duration missions were largely transient, but more than 30% of ISS astronauts experience more profound, chronic changes with objective structural and functional findings such as papilledema and choroidal folds. Globe flattening, optic nerve sheath dilation, and optic nerve tortuosity also are apparent. This pattern is referred to as the visual impairment and intracranial pressure (VIIP) syndrome. VIIP signs and symptoms, as well as postflight lumbar puncture data, suggest that elevated intracranial pressure (ICP) may be associated with the space flight-induced cephalad fluid shifts, but this hypothesis has not been tested. The purpose of this study is to characterize fluid distribution and compartmentalization associated with long-duration space flight, and to correlate these findings with vision changes and other elements of the VIIP syndrome. We also seek to determine whether the magnitude of fluid shifts during space flight, as well as the VIIP-related effects of those shifts, is predicted by the crewmember's pre-flight condition and responses to acute hemodynamic manipulations (such as head-down tilt). Lastly, we will evaluate the patterns of fluid distribution in ISS astronauts during acute reversal of fluid shifts through application of lower body negative pressure (LBNP) interventions to characterize and explain general and individual responses. We will examine a variety of physiologic variables in 10 long-duration ISS crewmembers using the test conditions and timeline presented in the Figure below. Measures include: (1) fluid compartmentalization (total body water by D2O, extracellular fluid by NaBr, intracellular fluid by calculation, plasma volume by CO rebreathe, interstitial fluid by calculation); (2) forehead/eyelids, tibia, calcaneus tissue thickness (by ultrasound); (3) vascular dimensions by ultrasound (jugular veins, cerebral and carotid arteries, vertebral arteries and veins, portal vein); (4) vascular dynamics by MRI (head/neck blood flow, cerebrospinal fluid pulsatility); (5) ocular measures (optical coherence tomography, intraocular pressure, 2-dimensional ultrasound including optic nerve sheath diameter, globe flattening, and retina-choroid thickness, Doppler ultrasound of ophthalmic and retinal arteries, and veins); (6) cardiac variables by ultrasound (inferior vena cava, tricuspid flow and tissue Doppler, pulmonic valve, stroke volume, right heart dimensions and function, four-chamber views); and (7) ICP measures (tympanic membrane displacement, distortion-product otoacoustic emissions, and ICP calculated by MRI). On the ground, acute head-down tilt will induce cephalad fluid shifts, whereas LBNP will oppose these shifts. Controlled Mueller maneuvers will manipulate cardiovascular variables. Through interventions applied before, during, and after flight, we intend to fully evaluate the relationship between fluid shifts and the VIIP syndrome. This study has been selected for flight implementation and is one of the candidate investigations being considered for the one year mission.

  13. Neurospora crassa ASM-1 complements the conidiation defect in a stuA mutant of Aspergillus nidulans.

    PubMed

    Chung, Dawoon; Upadhyay, Srijana; Bomer, Brigitte; Wilkinson, Heather H; Ebbole, Daniel J; Shaw, Brian D

    2015-01-01

    Aspergillus nidulans StuA and Neurospora crassa ASM-1 are orthologous APSES (ASM-1, PHD1, SOK2, Efg1, StuA) transcription factors conserved across a diverse group of fungi. StuA and ASM-1 have roles in asexual (conidiation) and sexual (ascospore formation) development in both organisms. To address the hypothesis that the last common ancestor of these diverse fungi regulated conidiation with similar genes, asm-1 was introduced into the stuA1 mutant of A. nidulans. Expression of asm-1 complemented defective conidiophore morphology and restored conidia production to wild type levels in stuA1. Expression of asm-1 in the stuA1 strain did not rescue the defect in sexual development. When the conidiation regulator AbaA was tagged at its C-terminus with GFP in A. nidulans, it localized to nuclei in phialides. When expressed in the stuA1 mutant, AbaA::GFP localized to nuclei in conidiophores but no longer was confined to phialides, suggesting that expression of AbaA in specific cell types of the conidiophore was conditioned by StuA. Our data suggest that the function in conidiation of StuA and ASM-1 is conserved and support the view that, despite the great morphological and ontogenic diversity of their condiphores, the last common ancestor of A. nidulans and N. crassa produced an ortholog of StuA that was involved in conidiophore development. PMID:25550299

  14. Harmonic engine

    DOEpatents

    Bennett, Charles L.; Sewall, Noel; Boroa, Carl

    2014-08-19

    An engine based on a reciprocating piston engine that extracts work from pressurized working fluid. The engine includes a harmonic oscillator inlet valve capable of oscillating at a resonant frequency for controlling the flow of working fluid into of the engine. In particular, the inlet valve includes an inlet valve head and a spring arranged together as a harmonic oscillator so that the inlet valve head is moveable from an unbiased equilibrium position to a biased closed position occluding an inlet. Upon releasing the inlet valve the inlet valve head undergoes a single oscillation past the equilibrium positio to a maximum open position and returns to a biased return position close to the closed position to choke the flow and produce a pressure drop across the inlet valve causing the inlet valve to close. Protrusions carried either by the inlet valve head or piston head are used to bump open the inlet valve from the closed position and initiate the single oscillation of the inlet valve head, and protrusions carried either by the outlet valve head or piston head are used to close the outlet valve ahead of the bump opening of the inlet valve.

  15. Applied drilling engineering

    SciTech Connect

    Bourgoyne, A.T. Jr.; Millheim, K.K.; Chenevert, M.E.; Young, F.S. Jr.

    1991-01-01

    This printing includes corrections made since the original publication in 1986. The text presents petroleum engineering science fundamentals as well as example engineering applications involving those fundamentals. Subjects covered include rotary drilling, drilling fluids, cements, drilling hydraulics, rotary-drilling bits, formation pore pressure and fracture resistance, casing design, directional drilling, and deviation control.

  16. ITER's Tokamak Cooling Water System and the the Use of ASME Codes to Comply with French Regulations of Nuclear Pressure Equipment

    SciTech Connect

    Berry, Jan [ORNL] [ORNL; Ferrada, Juan J [ORNL] [ORNL; Curd, Warren [ITER Organization, Saint Paul Lez Durance, France] [ITER Organization, Saint Paul Lez Durance, France; Dell Orco, Dr. Giovanni [ITER Organization, Saint Paul Lez Durance, France] [ITER Organization, Saint Paul Lez Durance, France; Barabash, Vladimir [ITER Organization, Saint Paul Lez Durance, France] [ITER Organization, Saint Paul Lez Durance, France; Kim, Seokho H [ORNL] [ORNL

    2011-01-01

    During inductive plasma operation of ITER, fusion power will reach 500 MW with an energy multiplication factor of 10. The heat will be transferred by the Tokamak Cooling Water System (TCWS) to the environment using the secondary cooling system. Plasma operations are inherently safe even under the most severe postulated accident condition a large, in-vessel break that results in a loss-of-coolant accident. A functioning cooling water system is not required to ensure safe shutdown. Even though ITER is inherently safe, TCWS equipment (e.g., heat exchangers, piping, pressurizers) are classified as safety important components. This is because the water is predicted to contain low-levels of radionuclides (e.g., activated corrosion products, tritium) with activity levels high enough to require the design of components to be in accordance with French regulations for nuclear pressure equipment, i.e., the French Order dated 12 December 2005 (ESPN). ESPN has extended the practical application of the methodology established by the Pressure Equipment Directive (97/23/EC) to nuclear pressure equipment, under French Decree 99-1046 dated 13 December 1999, and Order dated 21 December 1999 (ESP). ASME codes and supplementary analyses (e.g., Failure Modes and Effects Analysis) will be used to demonstrate that the TCWS equipment meets these essential safety requirements. TCWS is being designed to provide not only cooling, with a capacity of approximately 1 GW energy removal, but also elevated temperature baking of first-wall/blanket, vacuum vessel, and divertor. Additional TCWS functions include chemical control of water, draining and drying for maintenance, and facilitation of leak detection/localization. The TCWS interfaces with the majority of ITER systems, including the secondary cooling system. U.S. ITER is responsible for design, engineering, and procurement of the TCWS with industry support from an Engineering Services Organization (ESO) (AREVA Federal Services, with support from Northrop Grumman, and OneCIS). ITER International Organization (ITER-IO) is responsible for design oversight and equipment installation in Cadarache, France. TCWS equipment will be fabricated using ASME design codes with quality assurance and oversight by an Agreed Notified Body (approved by the French regulator) that will ensure regulatory compliance. This paper describes the TCWS design and how U.S. ITER and fabricators will use ASME codes to comply with EU Directives and French Orders and Decrees.

  17. Engineering Electrical &

    E-print Network

    Hickman, Mark

    Computer Engineering Electrical & Electronic Engineering Mechatronics Engineering Mechanical Engineering Civil Engineering Natural Resources Engineering Forest Engineering Chemical & Process Engineering ELECTIVE 2 Required Engineering Intermediate Year 2012 Eight Required Courses Chart: 120 points College

  18. Engineering Electrical &

    E-print Network

    Hickman, Mark

    Computer Engineering Electrical & Electronic Engineering Mechatronics Engineering Mechanical Engineering Civil Engineering Natural Resources Engineering Forest Engineering Chemical & Process Engineering ELECTIVE 2 Required Engineering Intermediate Year 2011 Eight Required Courses Chart: 120 points College

  19. 1 Copyright 2007 by ASME Proceedings of ICEF07

    E-print Network

    Papalambros, Panos

    controllable variables, i.e., injection timing and VGT vane position, to minimize fuel consumption. Some), and variable valve actuation (VVA), have alleviated the traditional disadvantages of diesel engines Internal Combustion Engine Division October 14-17, 2007, Charleston, South Carolina, USA ICEF2007-1603 REAL-TIME

  20. 1 Copyright 2005 by ASME Proceedings of IMECE2005

    E-print Network

    Brennan, Sean

    . Cameron Department of Mechanical and Nuclear Engineering The Pennsylvania State University 318 Leonhard Building University Park, PA 16802 Sean Brennan Department of Mechanical and Nuclear Engineering. INTRODUCTION Vehicle accidents are the single largest cause of fatalities for males 44 years and under