Large eddy simulations of turbulent channel and boundary layer flows at high Reynolds number with mean wall shear stress boundary condition

被引：39

作者：

Lee, Jungil ^{[1
,2
]}

Cho, Minjeong ^{[1
]}

Choi, Haecheon ^{[1
,2
]}

机构：

[1] Seoul Natl Univ, Div WCU Multiscale Mech Design, Sch Mech & Aerosp Engn, Seoul 151744, South Korea

[2] Seoul Natl Univ, Inst Adv Machinery & Design, Seoul 151744, South Korea

来源：

PHYSICS OF FLUIDS | 2013年 / 25卷 / 11期

关键词：

SUBGRID-SCALE MODEL;

D O I：

10.1063/1.4819342

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this study, we investigate the applicability of the mean wall shear stress as a boundary condition for large eddy simulation of wall-bounded turbulent flow with coarse-grid resolution near the wall. We consider turbulent channel flow up to Re-tau = O(10(8)) and turbulent boundary layer flow up to Re-theta = O(10(7)). The mean wall shear stress is determined based on the log-law at every time step. It is shown that the mean wall shear stress boundary condition accurately predicts the logarithmic velocity profile and low-order turbulence statistics even with very coarse-grid spacing near the wall. (C) 2013 AIP Publishing LLC.

引用

页数：12

共 51 条

[1]

[Anonymous], 1997, Adv. DNS/LES

[2] Two-layer approximate boundary conditions for large-eddy simulations [J].