[OpenFOAM] post-processing chtMultiRegionFoam case in paraview?

phsieh2005 · July 15, 2016, 09:25

Dear OpenFOAMers,

I ran a chtMultiRegionFoam case. And the case was decomposed into 16 processors. I used to reconstruct the case and then use foamToVTK to convert each region into VTK format. Is there a quick way to post-process a multiRegion case without first reconstruct and converting to VTK?

Thanks!

Pei-Ying

jmdf · July 15, 2016, 13:44

Hi,

I usually post-process multi region cases using:

Code:

paraFoam -builtin

Launching paraFoam with this flag, it loads all regions. I used paraView 4.4.0, not sure if it works with every version.
Note that you need to reconstruct the case first.

Have fun!

Bloerb · July 15, 2016, 16:05

As mentioned paraFoam -builtin
You do not need to reconstruct the case. You can simple switch to decomposedCase as usual in paraview

Some small pointers though.

If you have created your mesh from a single constant/polyMesh domain by splitting it with splitMeshRegions you should remove or rename this because it will show up in paraview.
If you only want to postProcess one domain it works the same way. Once paraview is open just uncheck all the domains you do not need.

July 15, 2016, 09:25	post-processing chtMultiRegionFoam case in paraview?	#1
phsieh2005 Senior Member Pei-Ying Hsieh Join Date: Mar 2009 Posts: 334 Rep Power: 18	Dear OpenFOAMers, I ran a chtMultiRegionFoam case. And the case was decomposed into 16 processors. I used to reconstruct the case and then use foamToVTK to convert each region into VTK format. Is there a quick way to post-process a multiRegion case without first reconstruct and converting to VTK? Thanks! Pei-Ying jadidi.cfd likes this.

July 15, 2016, 13:44		#2
jmdf Member João Ferreira Join Date: Nov 2014 Location: Braga, Portugal Posts: 53 Rep Power: 12	Hi, I usually post-process multi region cases using: Code: paraFoam -builtin Launching paraFoam with this flag, it loads all regions. I used paraView 4.4.0, not sure if it works with every version. Note that you need to reconstruct the case first. Have fun! jadidi.cfd likes this.

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July 15, 2016, 16:05		#3
Bloerb Senior Member Join Date: Sep 2013 Posts: 353 Rep Power: 21	As mentioned paraFoam -builtin You do not need to reconstruct the case. You can simple switch to decomposedCase as usual in paraview Some small pointers though. If you have created your mesh from a single constant/polyMesh domain by splitting it with splitMeshRegions you should remove or rename this because it will show up in paraview. If you only want to postProcess one domain it works the same way. Once paraview is open just uncheck all the domains you do not need.