[Other] Creating Multi-Region Mesh from CAD File

kostasb · November 10, 2021, 03:40

Dear Foamers,

I am using the chtMultiRegionFoam solver in OpenFoam to simulate a chemical reactor with its cooling circuit. In a sense, this is similar to a heat exchanger with chemical reactions in one flow loop (there is gas, fluid and solid). I already have a CAD file of the complete geometry which I created in Solidworks. I would like to be able to define the different regions and mesh them individually. This is very similar to the Heat exchanger simulation from SimScale. I would be happy if I could do the meshing with a commercial software as for the simulation itself I already setup everything in OpenFoam (and should be cheaper and not necessary).

Any ideas on:

How to export a complex CAD file?
How to define different regions?
How to mesh them individually?

Thanks a lot for the useful ideas,
Kostas

AtoHM · November 13, 2021, 02:34

I guess we have alot of ideas, but there are numerous sources for each point you are mentioning. I recommend going through tutorials, using the forum search tool and google.

November 10, 2021, 03:40	Creating Multi-Region Mesh from CAD File	#1
kostasb New Member Konstantinos Bardis Join Date: Oct 2021 Posts: 1 Rep Power: 0	Dear Foamers, I am using the chtMultiRegionFoam solver in OpenFoam to simulate a chemical reactor with its cooling circuit. In a sense, this is similar to a heat exchanger with chemical reactions in one flow loop (there is gas, fluid and solid). I already have a CAD file of the complete geometry which I created in Solidworks. I would like to be able to define the different regions and mesh them individually. This is very similar to the Heat exchanger simulation from SimScale. I would be happy if I could do the meshing with a commercial software as for the simulation itself I already setup everything in OpenFoam (and should be cheaper and not necessary). Any ideas on: How to export a complex CAD file? How to define different regions? How to mesh them individually? Thanks a lot for the useful ideas, Kostas

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November 13, 2021, 02:34		#2
AtoHM Senior Member M Join Date: Dec 2017 Posts: 642 Rep Power: 12	I guess we have alot of ideas, but there are numerous sources for each point you are mentioning. I recommend going through tutorials, using the forum search tool and google.