Sample records for ldistatud lineaarne mudel

  1. Global Model for Sound Absorption in Sea Water

    DTIC Science & Technology


    scattering. -31 - A -(dBirm) Tasnen Sea pH7.9 4’C .01 .001 , // l A2 A .01 F1 . :’ Frequency (kHz) Figure 30: Tasman Sea data and mudel. In the deep... Tasman Sea by Bannister et. a1. 1241 in Figure 30 are typical. In both experiments shown, measurements were made In the deep channel and the the South Tasman Sea ", J. Acoust. Soc. Am. 62 647-859 (1977) 25. A. C. Kibblewhite, N. R. Bedford and S. K. Mitchell, "Regional dependence of low

  2. Stellar Mixing: I. Formalism

    NASA Technical Reports Server (NTRS)

    Canuto, V .M.


    In this paper we use the Reynolds stress models (RSM) to derive algebraic expressions for the following variables: a) heat fluxes; b) J.l fluxes; and c) momentum fluxes. These relations, which are fully 3D, include: 1) stable and unstable stratification, represented by the Brunt-Vaislila frequency, N(exp 2) =-g/H(sub p_(del - del(sub ad))(1 - RI(sub mu)); 2) double diffusion, salt-fingers, and semi-convection, represented by the density ratio R(sub mu) = del(sub mu)/(del - del(sub ad)); 3) shear (differential rotation), represented by the mean squared shear Sigma(exp 2) or by the Richardson number, Ri =N(exp 2)Sigma(exp -2); 4) radiative losses represented by a Peclet number, Pe; 5) a complete analytical solution of the ID version of the model. In general, the model requires the solution of two differential equations for the eddy kinetic energy K and its rate of dissipation, epsilon. In the local and stationary cases, when production equals dissipation, the model equations are all algebraic.