[luca1989]

Hi guys! I'm trying to simulate an rc EDF witch consist in a static part and a fan. I did the mesh in snappy (parallel) inserting under "geometry"

MRF1.stl
{
type triSurfaceMesh;
name MRF1;
}

and under "refinementSurfaces"

MRF1
{
level (8 8);
regions{}
faceZone MRF1;
cellZone MRF1;
zoneInside true;
}

the mesh runs good and at the end i can find the file cellzone and facezone in the folders constan of all the processors. I also put the following fvOption in the system folder

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

MRFSourceCoeffs
{
origin (-0.095 0 0);
axis (-1 0 0);
omega 300;
}
}

When I run potential foam and/or simplefoam al the domani outside the MRF zone is rotating and i don't know why.

Anyone have any suggestion? Thanks

[luca1989]

I found a solution althought I don't understand the logic with cellZones are defined, so if anyone can explain me the reason why it works it will be very helpfull.
Anyway if I put in the definition of the cellzone "outside" instead of inside it works (the domain inside of the MRF1 surface rotates)

MRF1
{
level (7 7);
regions{}
faceZone MRF1;
cellZone MRF1;
cellZoneInside outside; //zoneInside true;
}

P.S. I also tried witing "cellZoneInside inside" but it leads to the same result of "zoneInside true" option. Again I can't understand what difference there's between "cellZoneInside" and "zoneInside", so any suggestion is appreciated.