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Face merging, patch definition, wall function |
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March 24, 2010, 07:07 |
Face merging, patch definition, wall function
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#1 |
New Member
Join Date: Mar 2010
Posts: 11
Rep Power: 16 |
Hello foamers,
I have a problem using blockMesh: I want to attach a cylinder face to a bigger rectangular block face using the command "mergePatchPairs". The goal is, that the cylinder face is completely merged to the block face, whereas the remaining block face should become a wall with wall functions applied. That's my question: How should I define the patches and boundary conditions? I already tried it, but it did not work. That's how I defined everything: File "blockMeshDict": patches ( patch cylinderface ( (1 2 3 4) ) wall blockface ( (5 6 7 8) ) ); mergePatchPairs ( (cylinderface bottomface) ); Boundary file 0/epsilon (i.e.): boundaryField { bottomface { type epsilonWallFunction; value uniform 0.000765; } } I got the following error: "Invalid wall function specification Patch type for patch bottomface must be wall Current patch type is patch" What does it mean? I defined the block face as a wall! Can anybody help me with this? Thanks, Stephan |
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March 24, 2010, 12:17 |
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#2 |
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Piotr Prusinski
Join Date: Oct 2009
Location: Warsaw, Poland
Posts: 67
Rep Power: 17 |
The only one thing I can't understand here is how could you merge the bottomface to anything, without specifing it in a patch list?
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March 24, 2010, 12:48 |
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#3 |
New Member
Join Date: Mar 2010
Posts: 11
Rep Power: 16 |
The patches are defined in the blockMeshDict file.
I solved the problem by deleting and recreating the boundary file. No everything works well :-) |
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