[coolcrasher]

Hi

I am new to openFoam and presently working to simulate the centrifugal pump in a transient way as in mixervesselAMI2D, propeller.

However I have some doubts regarding settings in mixervessleAMI2D, propeller fvSolutions file.

Following are my questions

1) What is cellMotionUx specifed ? What is it purpose and why is it defined only for Ux and not for Uy ??

cellMotionUx
    {
        solver          PCG;
        preconditioner  DIC;
        tolerance       1e-08;
        relTol          0;
    }

2) What is the purpose of correctPhi in PIMPLE settings ?? when should it be used. Also the use of pRefCell and pRefValue ?? When do you need to specify them ?

PIMPLE
{
    correctPhi          yes;
    nOuterCorrectors    2;
    nCorrectors         1;
    nNonOrthogonalCorrectors 0;

    pRefCell            0;
    pRefValue           0;
}

3) What is cache ? when it should be used ?

cache
{
    grad(U);
}

4) By default pressure is solved using GAMG solver which is a multigrid solver. Can we replace it with some PCG solver ( given in userguide ). Or is it like we have to use GAMG only with pimpleDyMFoam.

Please give me some information so that make a fvSolutions file for my simulation.

Any suggestions or information would be helpful.

Thanks in Advance

[coolcrasher]

Any help guys ??????

[PrzemekN]

Hi,

did you run the mixerVesselAMI2D?? Could you send me the commands?
Thanks Przemek