[lth]

Dear Foam Community,

Can someone give some insight on this matter?

I am running a 3D simulation and the solver is taking forever to compute, so I attempted to resolve with GAMG solver but the times are not changing.

Do I need to fix my blockMeshDict when choosing GAMG as a solver/preconditioner?

I do not have clusters and am working from a 4 processor workstation.

Sincerly, Lori

Here is my FvSolutions:
____________________________________
solvers
{

p GAMG
{
preconditioner FDIC;
mergeLevels 1;
smoother GaussSeidel;
agglomerator faceAreaPair;
nCellsInCoarsestLevel 100;
tolerance 1e-07;
relTol 0;
};

U GAMG
{
preconditioner DILU;
mergeLevels 1;
smoother GaussSeidel;
agglomerator faceAreaPair;
nCellsInCoarsestLevel 100;
tolerance 1e-06;
relTol 0;
};

taufirst PBiCG
{
preconditioner DILU;
tolerance 1e-06;
relTol 0;
};

}

PISO
{
momentumPredictor yes;
nCorrectors 2;
nNonOrthogonalCorrectors 1;
pRefCell 0;
pRefValue 0;
}

relaxationFactors
{
p 0.3;
U 0.5;
taufirst 0.3;
}
______________________________________________
FvSchemes
______________________________________________
ddtSchemes
{
default CrankNicholson 1;
}

gradSchemes
{
default leastSquares;
grad(p) Gauss linear;
grad(U) Gauss linear;

}

divSchemes
{
default none;
div(phi,U) Gauss upwind;
div(phi,taufirst) Gauss upwind;
div(tau) Gauss linear;

}

laplacianSchemes
{
default none;
laplacian(etaPEff,U) Gauss linear corrected;
laplacian(etaPEff+etaS,U) Gauss linear corrected;
laplacian((1|A(U)),p) Gauss linear corrected;
}

interpolationSchemes
{
default linear;
interpolate(HbyA) linear;
}

snGradSchemes
{
default corrected;
}

fluxRequired
{
default no;
p;
}
_______________________________________________