基于interFoam的求解器，残差有陡增的情况

[Xavier_Xia]

大家好，

目前在使用基于interFoam的新求解器进行液滴蒸发的相关模拟，模拟过程中记录压力项的残差，发现陡增比较严重，具体如图，离散跟求解的设置也如图，请大家提供意见。

    p_rgh
    {
        solver          PCG;
        preconditioner  DIC;
        tolerance       1e-20;
        relTol          0.05;
        // maxIter         100;
    }

    "pcorr.*"
    {
        $p_rgh;
        relTol          0;
    }

    p_rghFinal
    {
        $p_rgh;
        relTol          0;
    }

    "U|UFinal"
    {
      solver           smoothSolver;
      smoother         symGaussSeidel;
      tolerance        1E-12;
      relTol           0;
      minIter          1;
    }

PIMPLE
{
    momentumPredictor   no;
    nOuterCorrectors    1;
    nCorrectors         1;
    nNonOrthogonalCorrectors 0;
    pRefCell  0;
    pRefValue 0;

    residualControl
    {
      U
      {
        tolerance 1.0E-6;
        relTol    0;
      }

      p_rgh
      {
        tolerance 1.0E-7;
        relTol    0;
      }
    }
}

divSchemes
{
    default                       Gauss linear;
    div(nHat)                     Gauss linear;
    div(rhoPhi,U)                 Gauss limitedLinearV 1;
    div(rhoCpPhi,T)               Gauss limitedLinearV 1;    
    div(phi,alpha)                Gauss vanLeer;
    div(phirb,alpha)              Gauss interfaceCompression;
    div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear;
}