[Other] CheckMesh Error

alinuman15 · December 13, 2018, 22:52

Dear All:-
I have successfully created 18 compound wdges in blockMesh without any error or warning. However, when try to check mesh the following message come up:-
Create time

Create mesh for time = 0

#0 Foam::error:: printStack(Foam::Ostream&) at ??:?
#1 Foam::sigFpe::sigHandler(int) at ??:?
#2 ? in "/lib/x86_64-linux-gnu/libc.so.6"
#3 Foam:: polyMesh::calcDirections() const at ??:?
#4 Foam:: polyMesh:: polyMesh(Foam::IOobject const&) at ??:?
#5 Foam::fvMesh::fvMesh(Foam::IOobject const&) at ??:?
#6 ? in "/opt/openfoam6/platforms/linux64GccDPInt32Opt/bin/foamToVTK"
#7 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#8 ? in "/opt/openfoam6/platforms/linux64GccDPInt32Opt/bin/foamToVTK"
^C
Knowing that the same above message will come if I run renumberMesh or FoamToVTK (when doing paraFoam it crushes). What is going on ?
Thank you.

tobiasS · December 14, 2018, 01:40

Hi Ali,
Can you share more details?
The case itself and the log file of your blockMesh process would be very good.

alinuman15 · December 14, 2018, 03:16

Thank you Hussam. The case file is attached here along with the sketch of the case study ( the numbering of some points in pencil is used here).
https://drive.google.com/open?id=1JB...jfmhqrvqOSEA6F

tobiasS · December 16, 2018, 05:33

Hi Ali,
you're right .. checkMesh complains about the direction calculation of the mesh. I have tried to explore your mesh and your blockMeshDict, but sorry..I could not find anything. I have to admit, I have no experience in 2D geometries.
It may help you to take a look on this tutorial from Tobias Holzmann:
https://holzmann-cfd.de/openfoam/vid...metric-meshing

Cheers!
Hussam

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December 13, 2018, 22:52	CheckMesh Error	#1
alinuman15 Member Ali Noaman Ibrahim Join Date: Sep 2015 Location: US_Chicago Posts: 97 Rep Power: 10	Dear All:- I have successfully created 18 compound wdges in blockMesh without any error or warning. However, when try to check mesh the following message come up:- Create time Create mesh for time = 0 #0 Foam::error:: printStack(Foam::Ostream&) at ??:? #1 Foam::sigFpe::sigHandler(int) at ??:? #2 ? in "/lib/x86_64-linux-gnu/libc.so.6" #3 Foam:: polyMesh::calcDirections() const at ??:? #4 Foam:: polyMesh:: polyMesh(Foam::IOobject const&) at ??:? #5 Foam::fvMesh::fvMesh(Foam::IOobject const&) at ??:? #6 ? in "/opt/openfoam6/platforms/linux64GccDPInt32Opt/bin/foamToVTK" #7 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #8 ? in "/opt/openfoam6/platforms/linux64GccDPInt32Opt/bin/foamToVTK" ^C Knowing that the same above message will come if I run renumberMesh or FoamToVTK (when doing paraFoam it crushes). What is going on ? Thank you.

December 14, 2018, 01:40		#2
tobiasS Member Hussam Join Date: Aug 2017 Location: Germany Posts: 32 Rep Power: 8	Hi Ali, Can you share more details? The case itself and the log file of your blockMesh process would be very good.

December 14, 2018, 03:16		#3
alinuman15 Member Ali Noaman Ibrahim Join Date: Sep 2015 Location: US_Chicago Posts: 97 Rep Power: 10	Thank you Hussam. The case file is attached here along with the sketch of the case study ( the numbering of some points in pencil is used here). https://drive.google.com/open?id=1JB...jfmhqrvqOSEA6F

December 16, 2018, 05:33		#4
tobiasS Member Hussam Join Date: Aug 2017 Location: Germany Posts: 32 Rep Power: 8	Hi Ali, you're right .. checkMesh complains about the direction calculation of the mesh. I have tried to explore your mesh and your blockMeshDict, but sorry..I could not find anything. I have to admit, I have no experience in 2D geometries. It may help you to take a look on this tutorial from Tobias Holzmann: https://holzmann-cfd.de/openfoam/vid...metric-meshing Cheers! Hussam