|
[Sponsors] |
November 2, 2019, 18:56 |
pMesh tetMesh fails
|
#1 |
New Member
Join Date: Nov 2019
Posts: 13
Rep Power: 6 |
Hi, and thanks for the great tool cfMesh.
I tried some mesh with cartesianMesh since I guess is the fastest one and when I was satisfied with refinement I switch to tetMesh and pMesh, but I encurred in the following error: Code:
... ... ... Extracting voronoi mesh Resizing points! --> FOAM FATAL ERROR: Negative size requested. From function template<class T, Foam::label Offset> inline void Foam::LongList<T, Offset>::allocateSize(const label) in file lnInclude/OF__LongListI.H at line 73. FOAM aborting If I disable the refinements, the mesh continues without errors, obviously producing a too coarse result, so am I doing something wrong in the definition of refinements? Has it already been reported that the cartesianMesh is more robust than pMesh and tetMesh? Is there any way to visualize any areas where geometry can cause problems to the mesher? I'm using cfMesh 1.1.1 under Windows 10, and in the following the meshDict i'm using: Code:
surfaceFile "constant/triSurf/Geometry.fms"; enforceGeometryConstraints 0; keepCellsIntersectingBoundary 0; maxCellSize 0.128; localRefinement { Main { cellSize 0.012; refinementThickness 0.040; } SubSet_1 { cellSize 0.006; } SubSet_2 { cellSize 0.006; } Refinement_1 { cellSize 0.002; } Refinement_2 { cellSize 0.012; refinementThickness 0.1; } } objectRefinements { Box_Small { type box; cellSize 0.016; centre (1.35 0.0 0.0); lengthX 5.5; lengthY 2.5; lengthZ 2.5; } Box_Medium { type box; cellSize 0.032; centre (6.35 0.0 0.0); lengthX 10.5; lengthY 4.0; lengthZ 4.0; } Box_Large { type box; cellSize 0.064; centre (11.35 0.0 0.0); lengthX 15.5; lengthY 5.0; lengthZ 5.0; } } |
|
November 4, 2019, 03:50 |
|
#2 |
Senior Member
Kmeti Rao
Join Date: May 2019
Posts: 145
Rep Power: 7 |
Hi,
try using additionalRefinementLevels instead of cellSize. If the problem still persists then, more investigation is required |
|
November 9, 2019, 04:32 |
|
#3 |
New Member
Join Date: Nov 2019
Posts: 13
Rep Power: 6 |
||
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[ICEM] Advancing Front fails | fabian.schicker | ANSYS Meshing & Geometry | 2 | May 24, 2020 19:35 |
[cfMesh] cfMesh pMesh and tetMesh doesn't work | Bastian@MM | OpenFOAM Community Contributions | 2 | June 19, 2019 02:06 |
OF fails after "Create mesh for time = 0" | bharatr | OpenFOAM Running, Solving & CFD | 0 | September 17, 2014 20:10 |
Grid Check Fails in Parallel Processing Mode | askance | Main CFD Forum | 0 | October 20, 2010 10:11 |
fails saying “small gaps” | Neser | FLUENT | 2 | February 2, 2004 20:16 |