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BlockMeshDict with multiple hex blocks mergePatchPairs

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Old   December 29, 2008, 03:56
Default Hi, I'm trying to create a mes
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Tobias Prousa
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Hi, I'm trying to create a mesh using blockMesh from a blockMeshDict containing multiple hex blocks.
I managed to do this except one thing. The internal faces between the hexes get merged, but only some of them. Others don't, creating defaultFaces which obviousily confuse the solver.

Update: I learned that and how I have to merge internal patches which do not match 1-to-1 in blockMeshDict by hand using mergePatchPairs. But the result is that blockmesh tells me the following

mergePatchPairs not currently supported.
From function blockMesh
in file genBlockMesh.C at line 198.

Is this simply not implemented, yet? (OpenFOAM_1.5 linux-amd64)

I would really need to have blocks of different sizes to connect to each other.
Any other way of making these internal patches disappear?

What could I do about it? I think I won't manage to implement mergePatchPairs()
I just start understanding the OpenFOAM workflow for my purpose.

I'll attach a (rhoTurbFoam) case showing the behaviour.

Thanks in advance
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Old   May 14, 2009, 23:42
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Daniel WEI (老魏)
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I spent a whole day to write m4 file, and eventually only to find:
"mergePatchPairs not currently supported."

Daniel WEI
Boeing Research & Technology - China
Beijing, China
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