期刊
PHYSICS OF FLUIDS
卷 25, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4819342
关键词
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资金
- NRF
- MEST
- [2011-0028032]
- [R312012000100830]
- [2012M2A8A4055647]
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.
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