@random_ran 谢啦:laughing:
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lixh
@lixh
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Fluent 壁面粗糙度的设置 -
Fluent 壁面粗糙度的设置@random_ran 谢谢你的回复:happy: 我的计算域里的集合模型就单单一个面,所以就之间在计算域中选一个面作为壁面
我之前的原意的是在wall边界上的wall roughness这一项,这个在k-ε模型下可以设置,但在les模型下就变灰了 -
Fluent 壁面粗糙度的设置请教下大家,Fluent中在LES模型下是不是不能设置壁面粗糙度?
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p_rgh迭代次数过大@xpqiu 之前是GANG +DIC组合,这个到后来也会报错,可能真的是其它设置的问题,谢谢啦,我再试试:happy:
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p_rgh迭代次数过大@xpqiu DIC这个我试过,但是会报错
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p_rgh迭代次数过大我最近在用twophaseeulerfoam求解器,请问下p_rgh迭代次数超过1000是怎么回事?能减少其迭代次数吗?
Courant Number mean: 2.96985e-08 max: 0.000906108 Max Ur Courant Number = 1.0007 deltaT = 7.81647e-10 Time = 0.00027487919 PIMPLE: iteration 1 MULES: Solving for alpha.air MULES: Solving for alpha.air smoothSolver: Solving for alpha.air, Initial residual = 2.72559e-21, Final residual = 4.77894e-22, No Iterations 2 alpha.air volume fraction = 4.27076e-08 Min(alpha.air) = 0 Max(alpha.air) = 1 Constructing momentum equations nonePCG: Solving for p_rgh, Initial residual = 0.381368, Final residual = 0.0874588, No Iterations 1001 nonePCG: Solving for p_rgh, Initial residual = 0.361702, Final residual = 0.090747, No Iterations 1001
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有关twophaseeulerfoam中的问题@xpqiu 谢谢:happy:
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有关twophaseeulerfoam中的问题@xpqiu 还有个问题就是,在trnsport那一栏中mu表示的是粘度吗?
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请教下dragmodel问题谢谢您,pos就是负数返回0,正数返回1,是吧:happy:
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有关twophaseeulerfoam中的问题好的,谢谢您
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有关twophaseeulerfoam中的问题请问下twophaseeulerfoam求解器中是否需要设置流体密度和粘度参数?在phaseproperties文件里没有设置这些物理属性参数
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请教下dragmodel问题@李东岳 我用的是4.0版本的,将算例中的模型网格尺度变小之后也会这样。请问下东岳老师,SchillerNaumann定义里的neg是表示负号 的意思吗?
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请教下dragmodel问题请问下在使用twophaseeulerfoam解算器时出现这样的问题是怎样导致的?我查看了解算器源文件里的dragmodel代码但里边都是一些类的声明,没发现有等式或方程定义变量之类的。
#0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::sigFpe::sigHandler(int) at ??:? #2 ? in "/lib/x86_64-linux-gnu/libc.so.6" #3 ? in "/lib/x86_64-linux-gnu/libm.so.6" #4 pow in "/lib/x86_64-linux-gnu/libm.so.6" #5 Foam::pow(Foam::Field<double>&, Foam::UList<double> const&, double const&) at ??:? #6 Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> > Foam::pow<Foam::fvPatchField, Foam::volMesh>(Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&, Foam::dimensioned<double> const&) at ??:? #7 Foam::dragModels::SchillerNaumann::CdRe() const at ??:? #8 Foam::dragModel::Ki() const at ??:? #9 Foam::dragModel::K() const at ??:? #10 Foam::BlendedInterfacialModel<Foam::dragModel>::K() const at ??:? #11 Foam::twoPhaseSystem::Kd() const at ??:? #12 ? at ??:? #13 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #14 ? at ??:?