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November 25, 2009, 10:35 |
Offset warning
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#1 | |
New Member
Alexander K.
Join Date: Mar 2009
Posts: 3
Rep Power: 17 |
Hi Foamers,
I have create tube in tube mesh for heat exchanger with setSet. But during chtMultiRegionFoam calculation appear warnig: Quote:
Please, help to fix it up. blockMeshDict.gz makeCellSets.setSet.gz |
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November 27, 2009, 07:06 |
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#2 |
Member
Join Date: Sep 2009
Posts: 45
Rep Power: 16 |
Hi Mercato,
just to tell you that I've got the same error as you... That occurs when I run renumberMesh. Moreover, how can we do what we are asked for: "Set the debug flag to get a dump of sampled cells" ? If you have already solved the problem, I'd appreciate your help. Thanks. |
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November 29, 2009, 12:24 |
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#3 |
New Member
Join Date: May 2009
Posts: 7
Rep Power: 16 |
Hi Mercato and AirS,
I have the same problem using a mesh I have generated with snappyhexmesh. The problem, in my case, is in the boundary where some faces are wrong (but i don't know how i can correct them!). Ciao |
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November 30, 2009, 06:15 |
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#4 |
Member
Join Date: Sep 2009
Posts: 45
Rep Power: 16 |
Can anyone give me some suggestions about how to set the debug flag to get a dump of sampled cells ?I give you my inputs in constant/polyMesh/boundary :
{ type directMappedPatch; nFaces 2291; startFace 1200381; sampleMode nearestCell; sampleRegion region0; samplePatch none; offset ( 0.766 0 0 ); // Which is the keyword needed here ?? } Any suggestions are welcome, Thank you! |
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December 1, 2009, 07:27 |
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#5 |
Member
Join Date: Sep 2009
Posts: 45
Rep Power: 16 |
I've finally partly solved my problem.
I add the keyword directMappedPatchBase in the controlDict (OpenFOAM-1.6/etc) followed by 1 (Debug switches). So that I can see the suggestions and another file is created: INLET_directMapped.obj. My problem is that I don't understand what it's inside the first lines being like so: v -1 -0.08115735 0.112 v -0.2315849597 -0.08110849465 0.1120022489 l 1 2 v -1 -0.08115735 0.13 v -0.231585471 -0.08110835716 0.1299997623 l 3 4 Thanks a lot ! |
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December 2, 2009, 06:35 |
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#6 |
Member
Join Date: Sep 2009
Posts: 45
Rep Power: 16 |
Hi,
When I run decomposePar or renumberMesh I've got this warning: --> FOAM Warning : From function directMappedPatchBase::calcMapping() const in file directMapped/directMappedPolyPatch/directMappedPatchBase.C at line 451 The actual cell/face centres picked up using offset (2 0 0) are not on a single plane. This might give numerical problems. At patchface (-1 -0.0811574 0.112) the sampled cell/face (1.00878 -0.0811143 0.111998) is not on a plane 2.00502 offset from the patch. You might want to shift your plane offset. Set the debug flag to get a dump of sampled cells. Since it's just a warning I tried to run pisoFoam to see what happened, and it worked well. My simulation being done, I used reconstructPar and unfortunately I've got the same error. I can't understand how that can be possible actually since everything worked fine with the directMappedPatch boundary during the simulation. Does anybody have an idea of what I could try to sort this issue out ? Thanks ! |
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