On the long time behavior of time relaxation model of fluids

被引：5
|
作者：
Pakzad, Ali [1 ]
机构：
[1] Indiana Univ, Dept Math, Bloomington, IN 47405 USA
来源：
PHYSICA D-NONLINEAR PHENOMENA | 2020年 / 408卷 / 408期
关键词：
Energy Dissipation Rate; Time Relaxation Model; Turbulence; Energy Cascade; Kolmogorov's Conventional Turbulence; Theory; APPROXIMATE DECONVOLUTION MODEL; HELICITY DISSIPATION RATES; ENERGY-DISSIPATION; NUMERICAL-ANALYSIS; BOUNDARY-LAYER; FLOWS;
D O I：
10.1016/j.physd.2020.132509
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
The rate of energy dissipation of the time relaxation model in body-force-driven turbulence is analyzed to evaluate the effect of a time relaxation term on a simulation of 3d fluid motion. The result, which agrees with Kolmogorov's conventional turbulence theory, is also consistent with the rate proven for the Navier-Stokes equations. The analysis provides a range of possible values for a key model parameter. (C) 2020 Elsevier B.V. All rights reserved.
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页数：6
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