关于KOmegaSST壁面设置问题

Zhoujq

采用KOmegaSST时，基于y+=1，针对nut采用无壁面函数形式

FoamFile 
{
    version     2.0;
    format      ascii;
    class       volScalarField;
    location    "0";
    object      nut;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions      [0 2 -1 0 0 0 0];

internalField   uniform 9.917e-06;

boundaryField
{
    RECTANGULAR-AIR
    {
           type            fixedValue;
           value           uniform 0;         
    }
    RECTANGULAR-WATER
    {
           type            fixedValue;
           value           uniform 0;         
    }

在运行后报错

--> FOAM FATAL ERROR: 
Attempt to cast type fixedValue to type nutWallFunction at index 0

    From To& Foam::refCast(From&, Foam::label) [with To = const Foam::nutWallFunctionFvPatchScalarField; From = const Foam::fvPatchField<double>; Foam::label = int]
    in file /home/captain/OpenFOAM/OpenFOAM-v2006/src/OpenFOAM/lnInclude/typeInfo.H at line 162.

FOAM aborting

#0  Foam::error::printStack(Foam::Ostream&) at ??:?
#1  Foam::error::exitOrAbort(int, bool) at ??:?
#2  Foam::nutWallFunctionFvPatchScalarField::nutw(Foam::turbulenceModel const&, int) at ??:?
#3  Foam::omegaWallFunctionFvPatchScalarField::calculate(Foam::turbulenceModel const&, Foam::List<double> const&, Foam::fvPatch const&, Foam::Field<double>&, Foam::Field<double>&) at ??:?
#4  Foam::omegaWallFunctionFvPatchScalarField::calculateTurbulenceFields(Foam::turbulenceModel const&, Foam::Field<double>&, Foam::Field<double>&) at ??:?
#5  Foam::omegaWallFunctionFvPatchScalarField::updateCoeffs() at ??:?
#6  Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>::Boundary::updateCoeffs() at ??:?
#7  Foam::kOmegaSSTBase<Foam::LESModels::DESModel<Foam::IncompressibleTurbulenceModel<Foam::transportModel> > >::correct() at ??:?
#8  ? in ~/OpenFOAM/OpenFOAM-v2006/platforms/linux64GccDPInt32Opt/bin/interFoam
#9  __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6
#10  ? in ~/OpenFOAM/OpenFOAM-v2006/platforms/linux64GccDPInt32Opt/bin/interFoam

基于KOmegaSST模型，不使用壁面函数，让其自行求解研究对象的壁面边界，结果报错~
请教各位CFDer这个问题怎么解决

Zhoujq

run.zip
这个是run.log的报错文件，附上

xpqiu

@Zhoujq 把 fixedValue 改成 nutLowReWallFunction 试试？因为 omegaWallFunction 这个边界条件里面需要用到 nutWallFunction里面的东西，所以，如果你的 omega 壁面用的是 omegaWallFunction这个边界条件，那么你的nut就需要用一个继承自 nutWallFunction 的边界条件才行。 nutLowReWallFunction 这个边界条件其实就是把边界上的 nut 设置为一个非常小的数，跟你想要的是一样的。

Zhoujq

@xpqiu 嗯嗯，非常感谢~