[tagabi3]

Hi,

I am trying model an MRF problem, but I am stuck at how to set properly the cellZones and other sets. So far I have done the mesh with blockMesh and snappyHexMesh. Then I use topoSet to set the cells, which should be the rotating zone, the following way:

actions
(
    {
        name    mrffan;
        type    cellSet;
        action  new;
        source  boxToCell;
        sourceInfo
        {
box (-0.12 -0.002 -0.21) (0.12 0.012 0.021); //box which contains the fan
        }
    }
    {
        name    mrffan;
        type    cellZoneSet;
        action  new;
        source  setToCellZone;
        sourceInfo
        {
            set mrffan;
        }
    }
);

Where the fvOptions is set the following way:

MRF1
{
    type            MRFSource;
    active          true;
    selectionMode   cellZone;
    cellZone        mrffan;

    MRFSourceCoeffs
    {
        active      true;
        origin      (0 0 0);
        axis        (0 1 0);
        omega       100;
    }
}

When I execute simpleFoam it does 5-6 iterations and then it diverges. Can anyone please give me a step by step guide on how to set the rotating zone? And also how to set the stationary zone, because I have read somewhere, that it should be set as well. I am sending a minimum working example with the mesh without topoSet being exectued.

https://drive.google.com/file/d/0B11...ew?usp=sharing

Thank you in advance!
Gabor