Molecular Simulation of 3D Turbulent Channel Flow

被引:4
|
作者
Zeng, Dandan [1 ]
Zhong, Fengquan [1 ]
Fan, Jing [1 ]
机构
[1] Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
关键词
molecular simulation; turbulent flow; three dimensional channel; D-IP method; kinetic analogy; NUMBER;
D O I
10.1063/1.4902748
中图分类号
O59 [应用物理学];
学科分类号
摘要
The diffusive information preservation (D-IP) method is utilized to simulate three-dimensional turbulent channel flow. The Knudsen number and Reynolds number based on the channel half-width and mean velocity are 5 square 10(square 5) and 2800, respectively. The averaged velocity profile and the higher order turbulent statistics obtained by D-IP agree well with the DNS results given by Kim, Moin and Moser. Turbulent mixing length and turbulent viscosity obtained by the present results based on kinetic analogy are found to be comparable with the classic theory of Prandl's mixing length and Boussinesq eddy viscosity.
引用
收藏
页码:1349 / 1355
页数:7
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