MultiRegions Inside Mesh
 

Hi,

I am using the OpenFOAM tutorial snappyMultiRegionHeater to model the de-icing process on a airfoil.

I create STL files for 3 domains:
- Air domain (3 regions: inlet, outlet, sides),
- Heater (2 regions: heater_to_airDomain, heater_to_airfoil),
- Airfoil (2 regions: airfoil_to_airDomain, airfoil_to_heater).

Both Airfoil and Heater are inside the Air domain.

In the BlockMesh, I create 6 vectrices that fit exaclty the Air domain (one block) and define 3 boundaries (inlet, outlet, sides) as patches. These boundaries correspond to the regions in the Air domain STL file.

In the system folder, I tried to configure the changeDictionaryDict files but I am lost. I dont find any tutorial that really helps...

In the snappyHexMeshDict, I added the geometries, in the refinementSurfaces section I did this for each surface:
airfoil
{
level (1 1);
faceZone airfoil;
cellZone airfoil;
cellZoneInside airfoil;
}

When I launched the ./Allrun:
- the dictionary change logs for airDomain and heater return this error: Cannot find file "points" in directory "heater/polyMesh" in times 0 down to constant
- a new folder domain1 is automatically created
- in the dictionary change for the airfoil, i get this part (i think it can help for a better understanding):
fieldDict:
{
outlet
{
type patch;
nFaces 300;
startFace 12108;
}
sides
{
type patch;
nFaces 754;
startFace 12408;
}
airfoil_to_domain1
{
type mappedWall;
nFaces 1220;
startFace 13162;
sampleMode nearestPatchFace;
sampleRegion domain1;
samplePatch domain1_to_blade;
offsetMode uniform;
offset ( 0 0 0 );
}
}


I guess my errors are in the dictionary definitions but I dont know how to fix it.

Thank you for your help.