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  3. 周期性边界条件cyclicAMI的问题?

周期性边界条件cyclicAMI的问题?

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  • 东方白杨东 离线
    东方白杨东 离线
    东方白杨
    写于 最后由 编辑
    #1

    各位大佬,我设置了Mesh的边界为cyclicAMI

       inlet
        {
            type    cyclicAMI;
            inGroups    1(cyclicAMI);
            nFaces          1200;
            startFace       254800;
            matchTolerance  0.0001;
            neighbourPatch  outlet;
            transformType   translational;
            separation      (-7 0 0); 
            //method          faceAreaWeightAMI;
    
        }
        outlet
        {
            type    cyclicAMI;
            inGroups    1(cyclicAMI);
            nFaces          1200;
            startFace       256000;
            matchTolerance  0.0001;
            neighbourPatch  inlet;
            transformType   translational;
            separation      (7 0 0); 
        }
    

    那么在0文件中U、k、epsion、p该怎么设置呢,我把inlet/oulet都设置为了cyclicAMI,

        inlet
        {
             type    cyclicAMI;
        }
        outlet
        {
             type    cyclicAMI;
        }
    

    但是一运行就报错,我想问一下,原来给定inlet的fixvalue,outlet的0梯度,在设置为cyclicAMI type后,这些进口速度什么的去哪给定呢?是在internalField uniform 0.015;这里吗???

    报错如下:一改cyclicAMI就会报这个bounding k epsion问题

    Time = 13
    
    smoothSolver:  Solving for Ux, Initial residual = 2.42791e-08, Final residual = 2.42791e-08, No Iterations 0
    smoothSolver:  Solving for Uy, Initial residual = 0.000811094, Final residual = 3.38517e-05, No Iterations 2
    smoothSolver:  Solving for Uz, Initial residual = 0.737597, Final residual = 0.0203503, No Iterations 2
    GAMG:  Solving for p, Initial residual = 0.890921, Final residual = 0.0244256, No Iterations 2
    time step continuity errors : sum local = 6.70555e+80, global = 3.10688e+64, cumulative = 3.10688e+64
    smoothSolver:  Solving for epsilon, Initial residual = 2.70667e-12, Final residual = 2.70667e-12, No Iterations 0
    smoothSolver:  Solving for k, Initial residual = 0.0213526, Final residual = 0.000592874, No Iterations 2
    bounding k, min: -1.30004e+125 max: 2.00379e+126 average: 1.2466e+122
    ExecutionTime = 2.03 s  ClockTime = 2 s
    
    Time = 14
    
    smoothSolver:  Solving for Ux, Initial residual = 3.62239e-09, Final residual = 3.62239e-09, No Iterations 0
    smoothSolver:  Solving for Uy, Initial residual = 1.07394e-09, Final residual = 1.07394e-09, No Iterations 0
    smoothSolver:  Solving for Uz, Initial residual = 3.38562e-09, Final residual = 3.38562e-09, No Iterations 0
    [stack trace]
    =============
    #1  Foam::sigFpe::sigHandler(int) in ~/OpenFOAM/OpenFOAM-v2312/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
    #2  ? in /lib/x86_64-linux-gnu/libc.so.6
    #3  Foam::scalarProduct<double, double>::type Foam::sumProd<double>(Foam::UList<double> const&, Foam::UList<double> const&) in ~/OpenFOAM/OpenFOAM-v2312/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
    #4  Foam::PCG::scalarSolve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in ~/OpenFOAM/OpenFOAM-v2312/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
    #5  Foam::GAMGSolver::solveCoarsestLevel(Foam::Field<double>&, Foam::Field<double> const&) const in ~/OpenFOAM/OpenFOAM-v2312/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
    #6  Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMatrix::smoother> const&, Foam::Field<double>&, Foam::Field<double> const&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const in ~/OpenFOAM/OpenFOAM-v2312/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
    #7  Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in ~/OpenFOAM/OpenFOAM-v2312/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so
    #8  Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) in ~/OpenFOAM/OpenFOAM-v2312/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so
    #9  Foam::fvMatrix<double>::solveSegregatedOrCoupled(Foam::dictionary const&) in ~/OpenFOAM/OpenFOAM-v2312/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so
    #10  Foam::fvMesh::solve(Foam::fvMatrix<double>&, Foam::dictionary const&) const in ~/OpenFOAM/OpenFOAM-v2312/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so
    #11  Foam::fvMatrix<double>::solve() in ~/OpenFOAM/OpenFOAM-v2312/platforms/linux64GccDPInt32Opt/bin/simpleFoam
    #12  ? in ~/OpenFOAM/OpenFOAM-v2312/platforms/linux64GccDPInt32Opt/bin/simpleFoam
    #13  ? in /lib/x86_64-linux-gnu/libc.so.6
    #14  __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6
    #15  ? in ~/OpenFOAM/OpenFOAM-v2312/platforms/linux64GccDPInt32Opt/bin/simpleFoam
    =============
    Floating point exception
    

    CAS-IET

    1 条回复 最后回复
  • 东方白杨东 离线
    东方白杨东 离线
    东方白杨
    写于 最后由 编辑
    #2

    我在想本来k epsion给定的type是
    type nutkWallFunction;和 type kqRWallFunction;
    如果改成cyclicAMI,没有了壁面函数,会不会是因为这个导致k epsion报错???该怎么办呀。。

    CAS-IET

    1 条回复 最后回复
  • 李东岳李 在线
    李东岳李 在线
    李东岳 管理员
    写于 最后由 编辑
    #3

    我觉得你应该提升一下网格质量

    http://dyfluid.com/index.html
    需要帮助debug算例的看这个 https://cfd-china.com/topic/8018

    1 条回复 最后回复

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