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[OpenFOAM] Model has lots of dots and marks all over the surface |
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#1 |
New Member
Marius
Join Date: Sep 2022
Posts: 28
Rep Power: 4 ![]() |
Hi,
did anyone ever came across this? I am simulation only half of the domain with a symmetryPlane. Screenshot 2025-05-13 at 17.10.37.jpg Code:
/*---------------------------------------------------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 2412 | | \\ / A nd | Website: www.openfoam.com | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ Build : _2c4871ff-20250317 OPENFOAM=2412 version=2412 Arch : "LSB;label=32;scalar=64" Exec : checkMesh Date : May 06 2025 Time : 20:40:57 Host : 56205.example.us PID : 72421 I/O : uncollated Case : /home/OpenFOAM/CLIOHALF2 nProcs : 1 trapFpe: Floating point exception trapping enabled (FOAM_SIGFPE). fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 5, maxFileModificationPolls 20) allowSystemOperations : Allowing user-supplied system call operations // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time Create mesh for time = 0 Check mesh... Time = 0 Mesh stats points: 43991605 faces: 117311755 internal faces: 110626790 cells: 36924357 faces per cell: 6.1731216 boundary patches: 7 point zones: 1 face zones: 0 cell zones: 0 Overall number of cells of each type: hexahedra: 32347374 prisms: 1033072 wedges: 291 pyramids: 0 tet wedges: 17701 tetrahedra: 48 polyhedra: 3525871 Breakdown of polyhedra by number of faces: faces number of cells 4 378039 5 329713 6 782340 7 26767 8 15003 9 1325453 10 4928 11 4652 12 494581 13 715 14 1048 15 153879 16 56 17 166 18 8490 19 2 20 3 21 36 Checking topology... Boundary definition OK. Cell to face addressing OK. Point usage OK. Upper triangular ordering OK. Face vertices OK. Number of regions: 1 (OK). Checking patch topology for multiply connected surfaces... Patch Faces Points Surface topology symmetryPlane 80653 88377 ok (non-closed singly connected) inlet 132 156 ok (non-closed singly connected) outlet 132 156 ok (non-closed singly connected) lowerWall 33798 35074 ok (non-closed singly connected) upperWall 684 754 ok (non-closed singly connected) frontAndBack 627 696 ok (non-closed singly connected) car 6568939 7103448 multiply connected (shared edge) ".*" 6684965 7219733 multiply connected (shared edge) Detected 2 bad edges (possibly relevant for finite-area) Checking faceZone topology for multiply connected surfaces... No faceZones found. <<Writing 4 conflicting points to set nonManifoldPoints Checking basic cellZone addressing... No cellZones found. Checking basic pointZone addressing... PointZone PointsBoundingBox frozenPoints 0(1e+150 1e+150 1e+150) (-1e+150 -1e+150 -1e+150) Checking geometry... Overall domain bounding box (-6.5664248e-07 -5 -2.1495223e-44) (4.025 14.95 3.85) Mesh has 3 geometric (non-empty/wedge) directions (1 1 1) Mesh has 3 solution (non-empty) directions (1 1 1) Boundary openness (-1.4984639e-14 -1.6837704e-17 1.3857271e-15) OK. Max cell openness = 1.5387185e-15 OK. Max aspect ratio = 62.493939 OK. Minimum face area = 1.271819e-09. Maximum face area = 0.1225645. Face area magnitudes OK. Min volume = 1.2435955e-11. Max volume = 0.041102722. Total volume = 309.15002. Cell volumes OK. Mesh non-orthogonality Max: 77.234401 average: 10.591205 *Number of severely non-orthogonal (> 70 degrees) faces: 22. Non-orthogonality check OK. <<Writing 22 non-orthogonal faces to set nonOrthoFaces Face pyramids OK. Max skewness = 3.9999814 OK. Coupled point location match (average 0) OK. Mesh OK. End Maybe some holes in the mesh? Thanks for feedback! Marius |
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#2 |
Senior Member
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Hi Marius,
My guess is that you would need to put an extractBlock filter on the data to separate the internal mesh and the car walls. They may now lay on top of each other, which gives the visualization issue. Regards, Tom |
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