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[Commercial meshers] icem fluent mesh with cyclic boundary condition |
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April 5, 2011, 03:12 |
icem fluent mesh with cyclic boundary condition
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#1 |
Senior Member
Jie
Join Date: Jan 2010
Location: Australia
Posts: 134
Rep Power: 16 |
Dear all
I am currently having a problem about my icem fluent mesh. I tried to run a 3d simulation of flow past a cylinder with cyclic boundary condition on the front and back surfaces. However, OpenFOAM always complains face matching problem of the patches with cyclic boundary condition. ############# Create time Create polyMesh for time = 0 face 0 area does not match neighbour 4 by 71.4286% -- possible face ordering problem. patch:FB my area:2.96875 neighbour area:1.40625 matching tolerance:0.001 Mesh face:104 vertices:4((0 -1.75 1) (0 -3 1) (3 -3 1) (1.75 -1.75 1)) Neighbour face:108 vertices:4((-0.5 -0.5 0) (0 -0.5 0) (0 -1.75 0) (-1.75 -1.75 0)) Rerun with cyclic debug flag set for more information. From function cyclicPolyPatch::calcTransforms() in file meshes/polyMesh/polyPatches/constraint/cyclic/cyclicPolyPatch.C at line 180. FOAM exiting ############# It looks like there is a face ordering problem. I have group the front and back faces in the same group. Furthermore, I extrude my 3d mesh from a 2d mesh to avoid conformal surface problem. However, there is no such problem with wall boundary for the fron and back surfaces. Does anyone know a solution to the problem? or any other hex mesh tool I can use other than ICEM? Thanks a lot. |
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April 5, 2011, 04:36 |
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#2 |
Senior Member
Jie
Join Date: Jan 2010
Location: Australia
Posts: 134
Rep Power: 16 |
Problem is solved by creating cyclic patch group using createPatch.
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February 24, 2020, 04:34 |
cyclic b.c. for mesh generated by fluent
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#3 |
New Member
Deutschland
Join Date: Jun 2019
Posts: 21
Rep Power: 7 |
Hi everyone,
I made my geometry in fluent and converted in OpenFoam (which is of5x). then since I want to have a cyclic boundary in my geometry I create patchDict and I got the cyclic type boundary in polymesh boundary file and then I changed the type of boundary of the fields in 0 folder but after running, I got error in decomposepardict which I used metis that decompose library is missing and when I used scotch I got the error something doesn't match. how did you solve your problem? kind regards, Arghavn |
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