请教关于浸入边界法(IBM方法)的问题
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请教各位,关于浸入边界法(IBM)(直接力法)的问题
我最近在用rhocentralFoam求解器做圆柱绕流,结果后处理速度云图时,会出现如图所示的波动,我采用的是下面的边界条件,想问一下是什么原因?如果我进一步缩小时间步长或者调整网格大小会有帮助嘛?
0/U
dimensions [0 1 -1 0 0 0 0]; internalField uniform (0.3 0 0); boundaryField { inlet { type fixedValue; value uniform (0.3 0 0); } outlet { type zeroGradient; } bottom { type zeroGradient; } top { type zeroGradient; } defaultFaces { type empty; } }
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@李东岳 是的,李老师。音速是1m/s。
下面是我的thermophysicalPropertiesthermoType { type hePsiThermo; mixture pureMixture; transport const; thermo hConst; equationOfState perfectGas; specie specie; energy sensibleInternalEnergy; } // Note: these are the properties for a "normalised" inviscid gas // for which the speed of sound is 1 m/s at a temperature of 1K // and gamma = 7/5 mixture { specie { nMoles 1; molWeight 11640.3; } thermodynamics { Cp 2.5; Hf 0; } transport { mu 0.00933; Pr 1; } }
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