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Using multigrid in OpenFOAM 1.6

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Old   June 2, 2010, 09:59
Default Using multigrid in OpenFOAM 1.6
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Raghavendra
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Hi all,

Anyone tried to use multigrid in 1.6 version of OF.

I wan't to set
1. V cycle type for Pressure (for pressure termination value being 0.0001), alpha,
2. Flexible cycle type for Ua, Ub k and epsilon (Termination and restriction value being 0.01 and 0.07 respectively).
3. smoother type ILU

these are the changes what I made in Fluent and I wan't to incorporate the same changes in OF also

any one suggest me what changes I have to make in my fvSolution file

I included the following in fvSolution
GAMG
{
tolerance 1e-8;
relTol 0;

smoother DIC; //GaussSeidel;
nPreSweeps 0;
nPostSweeps 3;
nFinestSweeps 2;

cacheAgglomeration true;
nCellsInCoarsestLevel 20;
agglomerator faceAreaPair;
mergeLevels 1;
}

but how do I include termination and restriction values.

Regards
Raghu
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