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October 6, 2011, 17:57 |
autoPatch error, mesh quality related...?
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Member
Alex
Join Date: Apr 2010
Posts: 32
Rep Power: 16 |
Hi
I have made a mesh with gmsh, gmshToFoam reports this : Code:
/*---------------------------------------------------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 1.5-dev | | \\ / A nd | Revision: 1861 | | \\/ M anipulation | Web: http://www.OpenFOAM.org | \*---------------------------------------------------------------------------*/ Exec : gmshToFoam test.msh Date : Oct 06 2011 Time : 22:53:35 Host : iskandhar PID : 20516 Case : /home/alex/OpenFOAM/alex-1.5-dev/run/icoLagrangianFoam/GSNewTest nProcs : 1 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time Found $MeshFormat tag; assuming version 2 file format. Starting to read points at line 5 Vertices to be read:82487 Vertices read:82487 Starting to read cells at line 82495 Cells to be read:470722 Unhandled element 15 at line 82497 Unhandled element 15 at line 82498 Unhandled element 15 at line 82499 Unhandled element 15 at line 82500 Unhandled element 15 at line 82501 Unhandled element 15 at line 82502 Unhandled element 15 at line 82503 Unhandled element 15 at line 82504 Unhandled element 15 at line 82505 Unhandled element 15 at line 82506 Unhandled element 15 at line 82507 Unhandled element 15 at line 82508 Unhandled element 15 at line 82509 Unhandled element 15 at line 82510 Unhandled element 15 at line 82511 Unhandled element 15 at line 82512 Unhandled element 15 at line 82513 Unhandled element 15 at line 82514 Unhandled element 15 at line 82515 Unhandled element 15 at line 82516 Unhandled element 15 at line 82517 Unhandled element 15 at line 82518 --------------------------------------------------- Unhandled element 1 at line 83347 Unhandled element 1 at line 83348 Unhandled element 1 at line 83349 Unhandled element 1 at line 83350 Unhandled element 1 at line 83351 Unhandled element 1 at line 83352 Mapping region 0 to Foam patch 0 Mapping region 0 to Foam cellZone 0 Cells: total:427626 hex :0 prism:0 pyr :0 tet :427626 CellZones: Zone Size 0 427626 Skipping tag at line 553220 Patch 0 gets name patch0 --> FOAM Warning : From function polyMesh::polyMesh(... construct from shapes...) in file meshes/polyMesh/polyMeshFromShapeMesh.C at line 582 Found 42240 undefined faces in mesh; adding to default patch. Finding faces of patch 0 FaceZones: Zone Size Writing zone 0 to cellZone cellZone_0 and cellSet End Code:
alex@iskandhar:~/OpenFOAM/alex-1.5-dev/run/icoLagrangianFoam/GSNewTest$ checkMesh /*---------------------------------------------------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 1.5-dev | | \\ / A nd | Revision: 1861 | | \\/ M anipulation | Web: http://www.OpenFOAM.org | \*---------------------------------------------------------------------------*/ Exec : checkMesh Date : Oct 06 2011 Time : 22:46:33 Host : iskandhar PID : 19949 Case : /home/alex/OpenFOAM/alex-1.5-dev/run/icoLagrangianFoam/GSNewTest nProcs : 1 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time Create polyMesh for time = constant Time = constant Mesh stats points: 82487 faces: 876372 internal faces: 834132 cells: 427626 boundary patches: 2 point zones: 0 face zones: 0 cell zones: 1 Number of cells of each type: hexahedra: 0 prisms: 0 wedges: 0 pyramids: 0 tet wedges: 0 tetrahedra: 427626 polyhedra: 0 Checking topology... Boundary definition 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 patch0 42240 21122 ok (closed singly connected) defaultFaces 0 0 ok (empty) Checking geometry... This is a 3-D mesh Overall domain bounding box (-0.05 -0.05 -0.05) (0.33 0.08 0.05) Mesh (non-empty) directions (1 1 1) Mesh (non-empty, non-wedge) dimensions 3 ***Boundary openness (-1.57384e-17 -8.99149e-06 -5.84373e-05) Threshold = 1e-06 possible hole in boundary description. ***Open cells found, max cell openness: 1, number of open cells 10 Threshold = 1e-06 <<Writing 10 non closed cells to set nonClosedCells <<Writing 2 cells with high aspect ratio to set highAspectRatioCells Minumum face area = 6.1923e-08. Maximum face area = 2.40286e-05. Face area magnitudes OK. Min volume = 6.78547e-25. Max volume = 2.93558e-08. Total volume = 0.0024085. Cell volumes OK. Mesh non-orthogonality Max: 154.128 average: 23.0245 Threshold = 70 *Number of severely non-orthogonal faces: 4. ***Number of non-orthogonality errors: 10. <<Writing 14 non-orthogonal faces to set nonOrthoFaces ***Error in face pyramids: 16 faces are incorrectly oriented. <<Writing 14 faces with incorrect orientation to set wrongOrientedFaces ***Max skewness = 213.4, 4 highly skew faces detected which may impair the quality of the results Threshold = 4 <<Writing 4 skew faces to set skewFaces Failed 5 mesh checks. End Code:
alex@iskandhar:~/OpenFOAM/alex-1.5-dev/run/icoLagrangianFoam/GSNewTest$ autoPatch 14 /*---------------------------------------------------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 1.5-dev | | \\ / A nd | Revision: 1861 | | \\/ M anipulation | Web: http://www.OpenFOAM.org | \*---------------------------------------------------------------------------*/ Exec : autoPatch 14 Date : Oct 06 2011 Time : 22:51:21 Host : iskandhar PID : 20359 Case : /home/alex/OpenFOAM/alex-1.5-dev/run/icoLagrangianFoam/GSNewTest nProcs : 1 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time Create polyMesh for time = 0 Mesh read in = 1.59 s Feature:14 minCos :0.970296 Assigned 32400 faces to patch auto0 Assigned 28 faces to patch auto1 Assigned 287 faces to patch auto2 Assigned 112 faces to patch auto3 Assigned 1168 faces to patch auto4 Assigned 768 faces to patch auto5 Assigned 2632 faces to patch auto6 Assigned 287 faces to patch auto7 Assigned 28 faces to patch auto8 Assigned 288 faces to patch auto9 Assigned 287 faces to patch auto10 Assigned 2664 faces to patch auto11 Assigned 287 faces to patch auto12 Assigned 104 faces to patch auto13 Assigned 104 faces to patch auto14 Assigned 112 faces to patch auto15 Assigned 28 faces to patch auto16 Assigned 288 faces to patch auto17 Assigned 28 faces to patch auto18 Assigned 1 faces to patch auto19 Assigned 28 faces to patch auto20 Assigned 28 faces to patch auto21 Assigned 28 faces to patch auto22 Assigned 28 faces to patch auto23 Assigned 28 faces to patch auto24 Assigned 28 faces to patch auto25 Assigned 28 faces to patch auto26 Assigned 112 faces to patch auto27 Assigned 1 faces to patch auto28 Assigned 28 faces to patch auto29 Assigned 1 faces to patch auto30 Assigned 1 faces to patch auto31 --> FOAM Warning : From function SolverInfo::SolverInfo(const dictionary& dict,const objectRegistry &obr) in file SolverInfo/SolverInfo.C at line 61 Can't find phi-field with name phi Assumin incompressible solver Attempt to cast type polyMesh to type fvMesh From function refCast<To>(From&) in file /home/alex/OpenFOAM/OpenFOAM-1.5-dev/src/OpenFOAM/lnInclude/typeInfo.H at line 106. FOAM aborting Aborted alex@iskandhar:~/OpenFOAM/alex-1.5-dev/run/icoLagrangianFoam/GSNewTest$ Are these errors related...? Are there any tools in OF allowing me to heal this mesh...? BTW what is the best OSS mesher to OF, is it gmsh or Netgen...? My mesh was built out of a *step file created by a commercial cad package... BRGDS Alex |
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