Wall modeling for LES of high Reynolds number channel flows: What turbulence information is retained?

被引：10
作者：
Kalitzin, G. [1 ]
Medic, G. [1 ]
Templeton, J. A. [1 ]
机构：
[1] Stanford Univ, Stanford, CA 94309 USA
来源：
COMPUTERS & FLUIDS | 2008年 / 37卷 / 07期
关键词：
D O I：
10.1016/j.compfluid.2007.02.016
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
A novel near-wall eddy-viscosity formulation for Large-eddy simulation (LES) has been used to compute high Reynolds number channel flows up to Re-tau = 1,000,000. These computations allow an insight into what turbulence information is retained when LES with a wall model is applied to such high Reynolds numbers. Detailed results are presented for the mean and rms velocities, as well as energy spectra. It is observed that, when an appropriate scaling is used, the rms velocities, energy spectra and the production of turbulence kinetic energy are weakly Reynolds number dependent at these high Reynolds numbers. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：809 / 815
页数：7
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