管道模型RAS并行计算中遇到的问题

疾风GAVIN

因为模型的网格量比较大，所以我选择并行计算，但在过程中遇到了一些问题，之前也没有遇到过，在论坛上向大家请教一下为什么这样？应该怎么进行修正？谢谢！

decomposeParDict

numberOfSubdomains  3;

/*
    Main methods are:
    1) Geometric: "simple"; "hierarchical", with ordered sorting, e.g. xyz, yxz
    2) Scotch: "scotch", when running in serial; "ptscotch", running in parallel
*/

method              scotch;

simpleCoeffs
{
    n               (4 2 1); // total must match numberOfSubdomains
    delta           0.001;
}

hierarchicalCoeffs
{
    n               (4 2 1); // total must match numberOfSubdomains
    delta           0.001;
    order           xyz;
}

运行的代码

mpirun -np 2 rhoSimpleFoam parallel

报错

--> FOAM FATAL ERROR: 
Wrong number of arguments, expected 0 found 1

--> FOAM FATAL ERROR: 
Wrong number of arguments, expected 0 found 1


FOAM exiting


FOAM exiting

-------------------------------------------------------
Primary job  terminated normally, but 1 process returned
a non-zero exit code.. Per user-direction, the job has been aborted.
-------------------------------------------------------
--------------------------------------------------------------------------
mpirun detected that one or more processes exited with non-zero status, thus causing
the job to be terminated. The first process to do so was:

  Process name: [[65460,1],1]
  Exit code:    1
--------------------------------------------------------------------------

cccrrryyy

你用scotch分了3块，但是mpirun的-np是2。

疾风GAVIN

我把它改成3之后还是一样的报错，后面我是了一下不并行进行计算，它显示的报错是
：

--> FOAM FATAL IO ERROR: 
inconsistent patch and patchField types for 
    patch type symmetry and patchField type symmetryPlane

file: /home/jifeng/OpenFOAM/jifeng-6/run/Isolater-Huang/Isolater-Huang_1/0/alphat.boundaryField.symmetryPlane from line 59 to line 59.

    From function static Foam::tmp<Foam::fvPatchField<Type> > Foam::fvPatchField<Type>::New(const Foam::fvPatch&, const Foam::DimensionedField<Type, Foam::volMesh>&, const Foam::dictionary&) [with Type = double]
    in file /home/jifeng/OpenFOAM/OpenFOAM-6/src/finiteVolume/lnInclude/fvPatchFieldNew.C at line 160.

但是我的alphat以及其他的初始条件以及polyMesh文件夹里面的boundary里面的symmetryPlane边界面都是用的是symmetry，不知道为什么它会说alphat里面会

inconsistent patch and patchField types for 
    patch type symmetry and patchField type symmetryPlane

疾风GAVIN

刚刚我发现原因了，对称面不能命名为symmetryPlane,不然在运行的时候会报错：

inconsistent patch and patchField types for 
    patch type symmetry and patchField type symmetryPlane

我把对称面改称sym后就可以开始计算了！
2020-02-25 00-56-26屏幕截图.png

cccrrryyy

@疾风GAVIN symmetryPlane的要求好像特别严格，我以前也碰到过，后来再也不用symmetryPlane，一律用symmetry

疾风GAVIN

@cccrrryyy 嗯嗯是的，symmetryPlane要求对称面的normal必须一样，有些时候就算差的很小不影响计算，但是它也会报错的，我后面修改成symmetry后，发现并行计算也可以进行了，问题应该就是在symmetry和symmetryPlane的区别上。谢谢您～

cccrrryyy

加油加油