我打算在服务器上用fluent进行多节点并行计算,请问下该如何设置呢?:happy:
MX
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fluent 多节点并行 -
of的初始化@cfd-china 就是能否给定初始场,像fluent每次在计算之前都要进行initialize那样:confused:
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of的初始化请教下大家,of里能像fluent那样初始化吗?
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OF里可否进行并行重构?@cfd-china 哦,直接后处理的话要挨个打开有点麻烦呀
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OF里可否进行并行重构?@cfd-china 在decomposePar算完要进行reconstructPar时,能不能并行着重组?
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OF里可否进行并行重构?@cfd-china 就是并行用reconstructPar,可以吗?
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OF里可否进行并行重构?openfoam能否进行并行重构?:confused:
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twoPhaseEulerFoam 热传递@cfd-china 是不是跟边界条件设置有关?
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twoPhaseEulerFoam 热传递@cfd-china 六面体结构网格
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twoPhaseEulerFoam 热传递@cfd-china 在将能量方程全部评论完运行一段时间之后那个bounding k.water出现负值且时间=步长也越来越小,直至最后中断
Courant Number mean: 5.84593e-12 max: 6.24635e-05 Max Ur Courant Number = 0.501327 deltaT = 7.5759e-19 Time = 0.0558288 PIMPLE: iteration 1 MULES: Solving for alpha.air MULES: Solving for alpha.air alpha.air volume fraction = 0.000122275 Min(alpha.air) = 0 Max(alpha.air) = 1 Constructing momentum equations GAMG: Solving for p_rgh, Initial residual = 3.09857e-06, Final residual = 2.58535e-16, No Iterations 1 GAMG: Solving for p_rgh, Initial residual = 2.58534e-16, Final residual = 2.58534e-16, No Iterations 0 PIMPLE: iteration 2 MULES: Solving for alpha.air MULES: Solving for alpha.air alpha.air volume fraction = 0.000122275 Min(alpha.air) = 0 Max(alpha.air) = 1 Constructing momentum equations GAMG: Solving for p_rgh, Initial residual = 4.23432e-09, Final residual = 4.23432e-09, No Iterations 0 GAMG: Solving for p_rgh, Initial residual = 4.23432e-09, Final residual = 4.23432e-09, No Iterations 0 smoothSolver: Solving for k.air, Initial residual = 0.00272658, Final residual = 1.78882e-11, No Iterations 1 smoothSolver: Solving for k.water, Initial residual = 4.7282e-07, Final residual = 2.02625e-12, No Iterations 1 bounding k.water, min: -7.97352e+24 max: 3.96132e+22 average: -7.42132e+19 PIMPLE: not converged within 2 iterations ExecutionTime = 154112 s
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twoPhaseEulerFoam 热传递@cfd-china 好,我试试
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twoPhaseEulerFoam 热传递@cfd-china 就像这样的
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twoPhaseEulerFoam 热传递@cfd-china 是4.0版本的,就是每个时间步长迭代的最后会显示PIMPLE:not converged in 20 iterations
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twoPhaseEulerFoam 热传递@wwzhao 也一样:sad: 我发现是每个时间步长迭代完之后算法没有收敛,哪怕每个时间步长的迭代数设置为1000也没法收敛,请问下您有没有遇到过类似的情况? 是不是边界条件设置的原因?
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twoPhaseEulerFoam 热传递@cfd-china minIter 设为0 的时候,计算时间步长变得越来越小,现在量级达到-12,且还在继续地减小(时间步长设置了根据库朗数自动调节)
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OpenFOAM 粗糙度@CFD中文网 谢谢
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twoPhaseEulerFoam 热传递@cfd-china 在计算一段时间之后还是停止了~这个热传递好像没有关闭。
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OpenFOAM 粗糙度@CFD中文网 soga~就在下面设置值就行了是吧?但我的算例是空气和水混合的,是不是在nut.air和nut.water两个文件里揉同时设置?
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OpenFOAM 粗糙度OpenFOAM 里可以设置壁面的 粗糙度吗?
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twoPhaseEulerFoam 热传递@cfd-china 好的