上面是加热壁面,下面全都是多孔区域(孔隙率0.73),然后我产生的液相分布是这样的~ 几乎没有纯气体区域~甚至在固液界面处的液相含量反而高~我已经调过不同的毛细力模型,发现不是毛细力的影响~
现在还可以做的是增大相变系数~但是我相变系数一增大,就会在开始相变的时候发散~
有没有老师可以分析一下 可能是哪里导致的问题~
solvers
{
"alpha.liquid.*"
{
cAlpha 1;
nAlphaCorr 2;
nAlphaSubCycles 2;
MULESCorr yes;
nLimiterIter 5;
solver smoothSolver;
smoother symGaussSeidel;
tolerance 1e-7;
relTol 0;
}
rho
{
solver diagonal;
tolerance 1e-7;
relTol 0.1;
}
rhoFinal
{
$rho;
tolerance 1e-7;
relTol 0;
}
mDotSmearFinal
{
solver PCG;
tolerance 1e-7;
preconditioner DIC;
relTol 0.00;
smoother DIC;
}
"(U|T)"
{
solver smoothSolver;
smoother symGaussSeidel;
tolerance 1e-7;
relTol 0.;
minIter 15;
maxIter 50;
};
"(U|T)Final"
{
$U;
tolerance 1e-7;
relTol 0;
maxIter 50;
}
p
{
tolerance 1e-8;
solver PCG;
preconditioner DIC;
relTol 0.001;
smoother DIC;
}
pFinal
{
$p;
tolerance 1e-07;
relTol 0;
}
"pcorr.*"
{
$p_rgh;
tolerance 1e-9;
relTol 0;
};
}
PIMPLE
{
momentumPredictor yes;
nCorrectors 5;
nNonOrthogonalCorrectors 0;
pRefCell 0;
pRefValue 1e5;
}
relaxationFactors
{
alpha.liquid 0.2;
U 0.5;
p 0.5;
}
ddtSchemes
{
default Euler;
}
gradSchemes
{
default Gauss linear;
}
divSchemes
{
div(phi,alpha) Gauss vanLeer01;
div(phirb,alpha) Gauss vanLeer01;
//div(phirb,alpha) Gauss interfaceCompression;
//div(rhoPhi,U) Gauss vanLeerV;
//div(rhoPhi,U) Gauss limitedLinearV 1;
div(rhoPhi,U) Gauss linearUpwind;
div(rhoPhiByEps,U) Gauss linearUpwind;
div((mu*dev2(grad(U).T()))) Gauss linear;
div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear;
div(((rho*nu)*dev2(T(grad(U))))) Gauss linear;
div(rhoCpPhi,T) Gauss vanLeer;
div((interpolate(cp)*rhoPhi),T) Gauss vanLeer;
}
laplacianSchemes
{
default Gauss linear corrected;
}
interpolationSchemes
{
default linear;
}
snGradSchemes
{
default corrected;
}