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[snappyHexMesh] On refinement limits

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Old   October 16, 2022, 16:34
Smile On refinement limits
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Good day,

I am having a problem with creating a mesh.

I am using snappyHexMesh. I had maxGlobalCells set to 2 millions, but then I had this message:

Quote:
Shell refinement iteration 3
------------------
No cells marked for refinement since reached limit 2000000
snappyHexMesh runs until the end, but I get a mesh without the level of refinement I have set.
So I increased the maxGlobalCells, but then when I do that, snappyHexMesh does not run. I get:

Quote:
Shell refinement iteration 3
------------------
Marked for refinement due to distance to explicit features: 0 cells
Marked for refinement due to refinement shells: 3353488 cells
Determined cells to refine in : 1.53s
Selected for internal refinement: 3353488 cells (out of 7700908)
Killed
Something similar happens also when I try to extrudeMesh. If I have a small number of faces to extrude then it is fine. As soon as the number of faces to extrude raises to a 3 or 4 millions then the process is killed.
Do you have any idea why this happens?
Thanks and have a great day
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Old   October 17, 2022, 02:54
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Appears like a memory issue to me, maybe these help?
killed "snappyHexMesh"
solved issue of running out of virtual memory crashes
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maxglobalcells, mesh, open foam, refinement, snappyhexmesh

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