... LIGHT TRANSMISSION THROUGH A FOG-OIL SMOKE LAYER WITH AN ABSORBING OR PARTIALLY REFLECTING BOUNDARY By ...
DTIC Science & Technology
... Title : LIGHT TRANSMISSION THROUGH A FOG-OIL SMOKE LAYER WITH AN ABSORBING OR PARTIALLY REFLECTING BOUNDARY. ...
. Perfectly Matched Layers (PMLs) and an absorbing boundary condition are used to damp waves interacting of the electromagnetic interrogation problems introduced in [3]. Here we use perfectly matched layers (PMLs) as absorbing of interest. We use Perfectly Matched Layers to ...
E-print Network
... Diefects, oxide layers, etc., tend to trap thc inci- (lent radiatii ... that the radiation is absorbed in a very narrow layer at the ... with the boundary conditions ...
The effects of pollutants on the thermal structure and pollutant dispersal in the planetary boundary layer were studied. Numerical models of the boundary layer were constructed. Gaseous pollutants in the boundary layer were considered to absorb and emit ...
NASA Astrophysics Data System (ADS)
Recently, perfectly matched layer (PML) as an absorbing boundary condition has widespread applications. The idea was first introduced by Berenger for electromagnetic waves computations. In this paper, it is shown that the PML equations for the linearized ...
National Technical Information Service (NTIS)
We extend Berenger's perfectly matched layers (PML) to conductive media. A finite-difference-time-domain (FDTD) algorithm with PML as an absorbing boundary condition is developed for solutions of Maxwell's equations in inhomogeneous, conductive media. For a perfectly matched laye...
EPA Science Inventory
... Descriptors : (*MAGNETOHYDRODYNAMICS, BOUNDARY LAYER), (*BOUNDARY LAYER, FLAT PLATE MODELS), THERMODYNAMICS ...
A modification to the Berenger perfectly matched layer (PML) absorbing boundary condition that allows it to be used in particle-in-cell applications where the primary power flow through the boundary is due to electromagnetic radiation is presented. Instead of modeling particles within the PML, a term is introduced ...
Energy Citations Database
Abstract�The recently developed multiresolution time-domain technique (MRTD) is applied to the modeling of open microwave circuit problems. Open boundaries are simulated by the use of a novel formulation of the perfect matching layer (PML) absorber. PML is modeled both in split and nonsplit forms and can be brought right on the ...
In this work we consider a special case of the Perfectly Matched Layer (PML) divergence which is observed by the simulation of the planar periodic structures such as photonic crystal slabs or antenna arrays. This divergence is caused by an excitation of long-living artefact evanescent waves in these structures by an incident external pulse. We study the application of the ...
... TRANSPARENT AND WEAKLY ABSORBING SURFACE LAYERS. ... AT A SURFACE OF THE ... AND PARTIALLY ABSORBING LAYERED MATERIALS ...
We present a technique for constructing absorbing boundary conditions for diffusion equations from Neumann operators. The symbol of the Neumann operator is approximated by a rational interpolant with symmetric interpolation points. The absorbing boundary ...
... Abstract : This invention relates to layers of absorbent materials which are used to absorb incident microwave radiation energy. ...
... Descriptors : *BOUNDARY LAYER TRANSITION, HEAT TRANSFER, TURBULENCE, TURBULENT BOUNDARY LAYER, LAMINAR BOUNDARY ...
... In addition, the obscissas of the boundaries of these ... of turbulence in the boundary layers is detected ... transitton of the turbulent boundary layer to the ...
... Descriptors : *MEASUREMENT, *BOUNDARY LAYER, *COMPUTER AIDED DIAGNOSIS, PRESSURE GRADIENTS, COMPUTERS, BOUNDARIES ...
We prove that the straightforward extension of Berenger's original perfectly matched layer (PML) is not reflectionless at a cylindrical interface in the continuum limit. A quasi-PLM is developed as an absorbing boundary condition (ABC) for the finite-difference time-domain method...
Contents: The effect of electrode boundary cold gas layers on the electrical characteristics of DC MHD generators; The multiplicative muon effect in a lead-iron absorber; The separation of carrier-free 54 Mn from irradiated iron by reversed-phase partitio...
fraction of the IWC exists at sizes smaller than the mini- .... ation that would have been absorbed by water vapor in the boundary layer. ...... Frisch, A. C., W . Fairall, and J. B. Snider (1995), Measurement of stratus ...
NASA Website
The China Clay method is based on the differential rate of evaporation, beneath laminar and turbulent boundary layers, of a liquid absorbed on a solid spread on the surface. The liquid is chosen to have a similar refractive index to the solid so that the ...
... LAYER, TRANSPORT PROPERTIES), (*DIFFUSION, LAMINAR BOUNDARY LAYER), (*HYDROGEN, INJECTION FLUID FLOW), CHEMICAL ...
... Title : An Investigation of the Wave Boundary Layer and Its Interaction with the Atmospheric Surface Layer. ...
The planetary boundary layer is the part of the atmosphere that interacts directly with the Earth's surface on a time scale of a few hours or less. In daytime, solar heating of the surface can generate buoyant turbulent eddies that efficiently mix the air through a depth of more than a kilometer. This convective boundary ...
The problem of space constraint in sound absorber design occasionally occurs in practical design work for the requisite maintenance and access. To ultimate the performance of sound absorption under space constraint, the shape optimization to maximize the absorber's performance is thus arising, accordingly. In this paper, the numerical optimal studies on ...
... Title : Absorbing Boundary Conditions with Zero Reflection Angles for Compressional and Shear Incident Waves,. Corporate Author : ...
... Driven Marine Boundary Layers: Implications for Atmospheric Electromagnetics and ... SIGNALS, *BOUNDARY LAYER, PHYSICAL ...
... (Author). Descriptors : *BOUNDARY LAYER TRANSITION, HEAT TRANSFER, COMPUTER PROGRAMMING, TURBULENT BOUNDARY LAYER ...
... Influence of Boundary Layer Dynamics and Thermodynamics on the ... Sikora, Inferring Marine Atmospheric Boundary Layer Properties from Spectral ...
... on Marine Atmospheric Boundary Layer Depth (MABL). ... developed in boundary layers of depth ... with increasing boundary layer depth, supporting ...
1. Introduction. Atmospheric boundary layer behavior was measured ... atmospheric boundary layer properties. These subsets of data are from ...
... ATMOSPHERES, *ATMOSPHERIC PHYSICS ... ATMOSPHERICS, BOUNDARIES, BOUNDARY LAYER, ENGINEERING ... INTERFACES, LAYERS, ...
... dispersion in convective boundary layers", is aimed ... for dispersion in a convective boundary layer. ... second order atmospheric boundary layer model. ...
MEASUREMENTS OF BOUNDARY. LAYER TRANSITION, SEPARATION. AND STREAMLINE DIRECTION .... boundary layer streamlines at the blade surfaces. ...
... (Author). Descriptors : (*FLUID FLOW, BOUNDARY LAYER), (*BOUNDARY LAYER, FLUID FLOW), (*FLAT PLATE MODELS, FLUID FLOW ...
... model in an investigation of the stability of laminar boundary layers in hypersonic ... Boundary layer profile and model surface conditions were ...
... radiating from the turbulent boundary layers on ... bluntness effects on boundary layer transition on the ... of a vehicle entering the earth's atmosphere. ...
... Title : Boundary Layer Response to an Unsteady Turbulent Environment. ... of a wing boundary layer subjected to periodic turbulent flow at a Reynolds ...
A number of studies have been performed looking at the effects of surface blowing or suction on boundary layer stability. This situation can arise in the case of forced mass flow through a porous surface or in the case of an ablative surface material which absorbs energy and releases gas into the boundary ...
A perfectly matched layer (PML) is combined with an absorbing boundary condition (ABC) for mesh truncation in the finite element solution of electromagnetic scattering problems. It is shown by one-, two-, and three-dimensional examples, that the combined PML and ABC has less undesired reflection than the PML or ABC alone. I. ...
