[snappyHexMesh] Any way to refine internal surfaces within the mesh?

37269 · December 8, 2020, 12:08

Dear all,

Using SHM, I am trying to refine a region/body within my mesh to be able to define a complex porous region. As far as I can see now, I always have to define a "locationInMesh", which leads to either the cells within my future porous region, or the cells outside of it being removed. Essentially I want snappyHexMesh to skip bullet 4.4.4 from the user manual.

Is there any way to achieve this with snappyHexMesh? Or do I have to use a different mesher?

AtoHM · December 8, 2020, 15:10

Place the locationInMesh outside of the future porous region and then in surfaceRefinement you can prescribe a cellZone inside of your region, which tells snappy to keep that region instead of cutting it out. This should be of help: https://www.cfdsupport.com/OpenFOAM-...t/node266.html

37269 · December 10, 2020, 11:33

Thanks for the hint - it worked!

December 8, 2020, 12:08	Any way to refine internal surfaces within the mesh?	#1
37269 New Member Join Date: Feb 2016 Posts: 23 Rep Power: 10	Dear all, Using SHM, I am trying to refine a region/body within my mesh to be able to define a complex porous region. As far as I can see now, I always have to define a "locationInMesh", which leads to either the cells within my future porous region, or the cells outside of it being removed. Essentially I want snappyHexMesh to skip bullet 4.4.4 from the user manual. Is there any way to achieve this with snappyHexMesh? Or do I have to use a different mesher?

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December 8, 2020, 15:10		#2
AtoHM Senior Member M Join Date: Dec 2017 Posts: 642 Rep Power: 12	Place the locationInMesh outside of the future porous region and then in surfaceRefinement you can prescribe a cellZone inside of your region, which tells snappy to keep that region instead of cutting it out. This should be of help: https://www.cfdsupport.com/OpenFOAM-...t/node266.html

December 10, 2020, 11:33		#3
37269 New Member Join Date: Feb 2016 Posts: 23 Rep Power: 10	Thanks for the hint - it worked!