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Salome to foam import failing quality check

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Old   July 26, 2017, 12:17
Smile Salome to foam import failing quality check
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sunil
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Hi All,
I am trying to import SALOME mesh for a simple case (plate with hole) to OpenFoam, my geometry contails multiple parts and I have generated these parts with extrusion operation as shown in attached image. After converting this mesh to OpenFoam format using ideasUnvToFoam and while checking quality using checkMesh it is showing an error Failed 1 mesh checks. When I generate the mesh by keeping only one part, it is passing the quality check and I am able to run the case.
What additional operations I need to do in SALOME mesh module before exporting multibody part so that it pass the mesh check.


https://ibb.co/fhD8Kk


Thank you in advance
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Old   August 2, 2017, 01:00
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Nguyen Ngoc Thoai
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Hi sunilpatil!
Can you show errors from your checkMesh?
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Old   August 2, 2017, 11:59
Smile Failed 1 mesh checks for salome to openFoam
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sunil
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Hi, The following error I am getting

suneel@suneel:~/OpenFOAM/suneel-3.0.1/run/tutorials/stressAnalysis/solidDisplacementFoam/plateHoleSalome$ checkMesh
/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 3.0.1 |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : 3.0.1-d8a290b55d28
Exec : checkMesh
Date : Aug 02 2017
Time : 21:27:03
Host : "suneel"
PID : 14333
Case : /home/suneel/OpenFOAM/suneel-3.0.1/run/tutorials/stressAnalysis/solidDisplacementFoam/plateHoleSalome
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster
allowSystemOperations : Allowing user-supplied system call operations

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

Create polyMesh for time = 0

Time = 0

Mesh stats
points: 3600
internal points: 1458
faces: 4070
internal faces: 1930
cells: 1000
faces per cell: 6
boundary patches: 6
point zones: 0
face zones: 0
cell zones: 0

Overall number of cells of each type:
hexahedra: 1000
prisms: 0
wedges: 0
pyramids: 0
tet wedges: 0
tetrahedra: 0
polyhedra: 0

Checking topology...
Boundary definition OK.
Cell to face addressing OK.
***Unused points found in the mesh, number unused by faces: 1458 number unused by cells: 1458
<<Writing 1458 unused points to set unusedPoints
Upper triangular ordering OK.
Face vertices OK.
Number of regions: 1 (OK).

Checking patch topology for multiply connected surfaces...
Patch Faces Points Surface topology
hole 20 42 ok (non-closed singly connected)
left 30 62 ok (non-closed singly connected)
down 30 62 ok (non-closed singly connected)
right 30 62 ok (non-closed singly connected)
up 30 62 ok (non-closed singly connected)
frontAndBack 2000 2142 ok (non-closed singly connected)

Checking geometry...
Overall domain bounding box (-1.46549e-16 2.27374e-15 0) (2 2 0.1)
Mesh has 3 geometric (non-empty/wedge) directions (1 1 1)
Mesh has 3 solution (non-empty) directions (1 1 1)
Boundary openness (-1.35489e-17 -1.96511e-18 3.01231e-16) OK.
Max cell openness = 1.76879e-16 OK.
Max aspect ratio = 3.15467 OK.
Minimum face area = 0.00205951. Maximum face area = 0.00785202. Face area magnitudes OK.
Min volume = 0.000205951. Max volume = 0.000445561. Total volume = 0.380385. Cell volumes OK.
Mesh non-orthogonality Max: 41.2645 average: 10.1358
Non-orthogonality check OK.
Face pyramids OK.
Max skewness = 0.422833 OK.
Coupled point location match (average 0) OK.

Failed 1 mesh checks.

End
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Old   August 3, 2017, 09:08
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Nguyen Ngoc Thoai
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This is your mesh's error:

***Unused points found in the mesh, number unused by faces: 1458 number unused by cells: 1458

Maybe some points are not defined in face or boundary!

You should check your Salome file!

Show it here, maybe I can help u!
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