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[snappyHexMesh] cell 39973 of level 3 uses more than 8 points of equal or lower level |
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March 25, 2024, 04:26 |
cell 39973 of level 3 uses more than 8 points of equal or lower level
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#1 |
New Member
Izgi Yagiz Gezgin
Join Date: Mar 2024
Posts: 5
Rep Power: 2 |
Hello everyone,
I am trying to use : mpirun -np 6 snappyHexMesh -overwrite -parallel However, I get this error: --> FOAM FATAL ERROR: (openfoam-2312) [2] cell 39973 of level 3 uses more than 8 points of equal or lower level Points so far:8(16780 16925 25566 42788 43258 43259 64859 65157) I tried the deleting everything except blockMesh under polymesh, it didn`t work. Thanks in advance |
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March 25, 2024, 04:36 |
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#2 |
Senior Member
Yann
Join Date: Apr 2012
Location: France
Posts: 1,224
Rep Power: 28 |
Hello,
What are the exact steps you do? Have you re-run blockMesh? If you used reconstructPar at some point, you should remove the constant/polyMesh folder. (and run blockMesh again to create your initial mesh) Regards, Yann |
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March 25, 2024, 04:42 |
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#3 | |
New Member
Izgi Yagiz Gezgin
Join Date: Mar 2024
Posts: 5
Rep Power: 2 |
Quote:
Here are the steps I used: blockMesh surfaceFeatureExtract decomposePar mpirun -np 6 snappyHexMesh -overwrite -parallel The first 3 steps works fine. I deleted the polyMesh folder and "blockMesh" again but it didn`t solve the problem. I am open for new suggestions Cheers |
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March 25, 2024, 05:52 |
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#4 |
Senior Member
Yann
Join Date: Apr 2012
Location: France
Posts: 1,224
Rep Power: 28 |
The error you get means you try to run snappyHexMesh on a mesh which contains non hex cells. This usually happens when you re-run snappy on a mesh previously created by snappy (as snapping will split the cells overlapping the geometry surface).
Lets try to sum it up:
Make sure each steps runs fine (no errors on blockMesh or decomposePar) |
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April 5, 2024, 03:40 |
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#5 |
Member
Marķa Rosales
Join Date: Mar 2023
Location: Spain
Posts: 48
Rep Power: 3 |
Hi, as Yan said this happens where there are no hex cells in the location where current snappy execution is trying to make changes. If you have run before snappy tool or refineHexMesh that may changed the shape of cells wheren your current snappy is now trying to make changes, this may be the reason of error
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