Multiple domain/Multiple material problems... possible or not?

Amiga500 · April 14, 2010, 05:58

Hi FOAMers,

As above - can OpenFOAM handle multiple domain/multiple material problems with interior boundaries allowing fluid to pass between each domain?

I know the fluentMeshToFoam converter cannot handle multiple materials, but I am not sure whether that is a converter limitation, or a limitation for OpenFOAM in general...

(The multiple material points are required for post processing - we are looking at fluid compositions over time in multi-cell chambers)

If OF can handle multiple material/domain problems; I'm happy to go off and hunt down the technique myself, but of course any guidance is very welcome!

benk · April 14, 2010, 16:32

You can do this using a number of techniques:
1) conjugateHeatFoam : see http://www.cfd-online.com/Forums/ope...-openfoam.html but this is only available in the -dev versions.
2) chtMultiRegionFoam
3) You can "map" transport properties between submeshes and a main mesh.

Out of those 3, I prefer conjugateHeatFoam.

April 14, 2010, 05:58	Multiple domain/Multiple material problems... possible or not?	#1
Amiga500 Member Join Date: Mar 2009 Posts: 36 Rep Power: 17	Hi FOAMers, As above - can OpenFOAM handle multiple domain/multiple material problems with interior boundaries allowing fluid to pass between each domain? I know the fluentMeshToFoam converter cannot handle multiple materials, but I am not sure whether that is a converter limitation, or a limitation for OpenFOAM in general... (The multiple material points are required for post processing - we are looking at fluid compositions over time in multi-cell chambers) If OF can handle multiple material/domain problems; I'm happy to go off and hunt down the technique myself, but of course any guidance is very welcome!

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April 14, 2010, 16:32		#2
benk Senior Member Ben K Join Date: Feb 2010 Location: Ottawa, Canada Posts: 140 Rep Power: 19	You can do this using a number of techniques: 1) conjugateHeatFoam : see http://www.cfd-online.com/Forums/ope...-openfoam.html but this is only available in the -dev versions. 2) chtMultiRegionFoam 3) You can "map" transport properties between submeshes and a main mesh. Out of those 3, I prefer conjugateHeatFoam.