科研之友
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摘要
A new subgrid eddy viscosity model was proposed. The new subgird eddy viscosity is proportional to the skewness of longitudinal velocity increment, which characterizes the transportation of turbulent momentum between resolved and unresolved turbulence. The new model was verified by a DNS data bank of isotropic turbulence, and has been applied to the turbulent channel flow. The results show to be in good agreement with DNS ones.
- 出版日期2004
- 单位清华大学
