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October 24, 2010, 09:20 |
Setup problem about overlapGgi
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#1 |
Member
Masashi Ohbuchi
Join Date: Oct 2009
Posts: 74
Rep Power: 16 |
Dear all,
I'm trying to use overlapGgi. I made simple mesh for testing overlapGgi as attached image. The boundary file is as follows, imp_out { type overlapGgi; nFaces 160; startFace 33240; shadowPatch gui_in; zone imp_out_zone; rotationAxis (0 0 1); angle 72.0; bridgeOverlap false; } gui_in { type overlapGgi; nFaces 136; startFace 33104; shadowPatch imp_out; zone gui_in_zone; rotationAxis (0 0 1); angle 60.0; bridgeOverlap false; } I wrote function "ggiCheck" in my controlDict, and ran the MRFSimpleFoam solver, then the solver showed following message. Number of slave copies: 2 Evaluation of GGI weighting factors: From function void GGIInterpolation<MasterPatch, SlavePatch>::rescaleWeightingFactors() const in file .../GGIInterpolationWeights.C at line 534 Uncovered faces found. On master: 8 on slave: 120 largest slave weighting factor correction: 0.0170587 average: 0.000617197 largest master weighting factor correction: 0.390019 average: 0.0196433 And calculation stopped in Time=1 before solving p-eq. for floating point exception. I think my setting about overlapGgi is something wrong, but I can't make out how to modify it. What's the problem on my setting? Any comments welcome. |
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October 27, 2010, 08:03 |
Re: Setup problem about overlapGgi (Fixed)
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#2 |
Member
Masashi Ohbuchi
Join Date: Oct 2009
Posts: 74
Rep Power: 16 |
I've read source code "overlapGgiPatchFvPatch.H", and I've found that
master and slave patches must be started same edge. So I change my mesh like attached image, and re-try simulation. This time MRFSimpleFoam ran perfectly! But this constraint (sharing same edge) is too hard to practical application, I suppose. |
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February 17, 2012, 06:19 |
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#3 | |
Member
Aqua
Join Date: Oct 2011
Posts: 96
Rep Power: 14 |
Quote:
I know your post was there for a really long time. But, did you notice the tutorial case in 1.6-ext, "turboPassangeRotating" ? Because in that case the master and slave don't start at the same edge... I currently have the problem that: the solver doesn't complain about uncovered faces, but when I tried to use foamToEnsight, it complained about the "uncovered faces". Do you know what maybe the problem? Thank you so much! Aqua |
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