fvSolution中修改每一项的tolerance，我的case是bubbleColumnEvaporatingReacting，自带的tolerance是1e-20，我修改为1e-10后计算的非常快，而且计算结果几乎相同。
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "system";
object fvSolution;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
solvers
{
"alpha.*"
{
nAlphaCorr 1;
nAlphaSubCycles 3;
}
p_rgh
{
solver GAMG;
smoother DIC;
tolerance 1e-10;
relTol 0.001;
}
p_rghFinal
{
$p_rgh;
relTol 0;
}
"U.*"
{
solver smoothSolver;
smoother symGaussSeidel;
tolerance 1e-10;
relTol 0;
minIter 1;
}
"(e|h).*"
{
solver smoothSolver;
smoother symGaussSeidel;
tolerance 1e-10;
relTol 0;
minIter 1;
}
"(k|epsilon|Theta).*"
{
solver smoothSolver;
smoother symGaussSeidel;
tolerance 1e-10;
relTol 0;
minIter 1;
}
Yi
{
solver smoothSolver;
smoother symGaussSeidel;
tolerance 1e-10;
relTol 0;
minIter 1;
residualAlpha 1e-8;
}
}
PIMPLE
{
nOuterCorrectors 1;
nCorrectors 1;
nNonOrthogonalCorrectors 0;
}
relaxationFactors
{
equations
{
".*" 0.3;
}
}
// ************************************************************************* //
W
