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[mesh manipulation] Fluent3DMeshToFoam returns a mesh that has a error

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Old   February 2, 2021, 02:47
Default Fluent3DMeshToFoam returns a mesh that has a error
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Nirandika Wanigasekara
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I am trying to convert a 3D mesh from Ansys/Fluent to OpenFOAM using the Fluent3DMeshToFoam. It generates a polyMesh folder.

However, when I do a checkMesh I get the following error. I don't have any experience in OpenFOAM. Could you tell me how to resolve this issue. ?


(base) [unsw@OCP-WVM1 fluet2foam_nirandi]$ checkMesh
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: 8
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
Build : 8
Exec : checkMesh
Date : Feb 02 2021
Time : 18:45:13
Host : "OCP-WVM1.syd.iic.ihost.com"
PID : 22154
I/O : uncollated
Case : fluet2foam_nirandi
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10)
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create polyMesh for time = 0

Time = 0

Mesh stats
points: 124647
internal points: 108875
faces: 1009194
internal faces: 979332
cells: 468195
faces per cell: 4.24722
boundary patches: 11
point zones: 0
face zones: 1
cell zones: 1

Overall number of cells of each type:
hexahedra: 0
prisms: 115079
wedges: 0
pyramids: 667
tet wedges: 0
tetrahedra: 352449
polyhedra: 0

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
wall-air 206 208 ok (non-closed singly connected)
inlet 139 86 ok (non-closed singly connected)
top 246 148 ok (non-closed singly connected)
symmetry 3834 2474 ok (non-closed singly connected)
bottom 275 163 ok (non-closed singly connected)
wall 490 275 ok (non-closed singly connected)
outlet 130 81 ok (non-closed singly connected)
e1 6372 3349 ok (non-closed singly connected)
e2 7660 3875 ok (non-closed singly connected)
e3 6081 3084 ok (non-closed singly connected)
endplate 4429 2676 ok (non-closed singly connected)

Checking geometry...
Overall domain bounding box (-0.75 -0.75 -0.6) (3 1.25 0.485)
Mesh has 3 geometric (non-empty/wedge) directions (1 1 1)
Mesh has 3 solution (non-empty) directions (1 1 1)
Boundary openness (8.53721e-18 -1.68998e-17 8.66933e-16) OK.
Max cell openness = 4.96005e-16 OK.
Max aspect ratio = 140.846 OK.
Minimum face area = 9.13457e-09. Maximum face area = 0.0501287. Face area magnitudes OK.
Min volume = 8.88591e-12. Max volume = 0.00396483. Total volume = 8.12855. Cell volumes OK.
Mesh non-orthogonality Max: 86.5021 average: 21.9251
*Number of severely non-orthogonal (> 70 degrees) faces: 1159.
Non-orthogonality check OK.
<<Writing 1159 non-orthogonal faces to set nonOrthoFaces
Face pyramids OK.
***Max skewness = 4.67766, 15 highly skew faces detected which may impair the quality of the results
<<Writing 15 skew faces to set skewFaces
Coupled point location match (average 0) OK.

Failed 1 mesh checks.

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