Comparison of hybrid turbulence models for a circular cylinder and a cavity

被引：0

作者：

Nichols, R.H. ^{[1
,2
,3
]}

机构：

[1] University of Alabama at Birmingham, Birmingham, AL 35294

[2] Department of Mechanical Engineering

[3] AIAA

来源：

AIAA Journal | 2006年 / 44卷 / 06期

关键词：

Three hybrid Reynolds-averaged Navier-Stokes/large-eddy simulation turbulence models are applied to the flow over a three-dimensional circular cylinder and a generic weapons bay. Time-step and grid sensitivity studies are performed. The time-step study indicates that 100-200 steps per primary shedding cycle are required for temporal accuracy using a second-order implicit algorithm. The grid study indicates that these new turbulence models can achieve a reasonably grid-independent solution in simulation of unsteady turbulent flows. As the mesh resolution is increased; smaller scale turbulent structures become visible. A computational mesh with a grid resolution resulting in a ratio of the turbulent length scale to grid length scale greater than 2 produced a reasonable simulation with all three hybrid models for both cases;

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摘要：

Journal article (JA)

引用

页码：1207 / 1219