A new dynamic subgrid eddy viscosity model with application to turbulent channel flow

被引：45

作者：

Cui, GX ^{[1
]}

Zhou, HB

Zhang, ZS

Shao, L

机构：

[1] Tsinghua Univ, Dept Engn Mech, Beijing 100084, Peoples R China

[2] Ecole Cent Lyon, Lab Fluid Mech & Acoust, F-69131 Ecully, France

来源：

PHYSICS OF FLUIDS | 2004年 / 16卷 / 08期

关键词：

D O I：

10.1063/1.1762911

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A new subgrid eddy viscosity model is proposed for large eddy simulation of turbulent flows. The new model is based on the exact energy transport equation between resolved and unresolved scale turbulence. The subgrid eddy viscosity of new model is proportional to the skewness of longitudinal velocity increment, which measures the ratio of cascade energy to the dissipation. The new model is verified in isotropic turbulence and tested in turbulent channel flow with satisfaction. (C) 2004 American Institute of Physics.

引用

页码：2835 / 2842

页数：8

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