[Commercial meshers] Connecting meshes after cfMesh for multiRegion

Clau.77 · July 12, 2021, 05:55

Hey guys!

After getting really frustrated with snappyHexMesh, I decided to try cfMesh for my multiRegion case. My workflow:
1. make one Mesh for each region
2. use topoSet to define cell- and faceZones
3. mergeMeshes
4. splitMeshRegions

I am not getting any error and one nice mesh after that but the problem is that the regions are not connected.
So, how can I do that? My idea was to either use stitchMesh or createBaffles to get the "this_to_that" patches but I don't really know how to do that or if that is even the right way to do it.

Does anyone have an idea?

itsme_kit · July 26, 2022, 04:02

Hi Claudia

I would really appreciate that you could share more details about step 2, 3 and 4. Especially, how to implement those steps in cfMesh?

Many thanks.

Best Regards,

Ke

CRI_CFD · September 21, 2022, 06:59

Hi guys,

Did you manage to merge nodes on the interface zones so mesh is comformal?

I ma struggling on how to do it. cfMesh do a nice work, but after mergeMeshes nodes at the interface are not connected...

Thanks in advance

July 12, 2021, 05:55	Connecting meshes after cfMesh for multiRegion	#1
Clau.77 Member Claudia Join Date: Mar 2021 Posts: 43 Rep Power: 5	Hey guys! After getting really frustrated with snappyHexMesh, I decided to try cfMesh for my multiRegion case. My workflow: 1. make one Mesh for each region 2. use topoSet to define cell- and faceZones 3. mergeMeshes 4. splitMeshRegions I am not getting any error and one nice mesh after that but the problem is that the regions are not connected. So, how can I do that? My idea was to either use stitchMesh or createBaffles to get the "this_to_that" patches but I don't really know how to do that or if that is even the right way to do it. Does anyone have an idea?

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July 26, 2022, 04:02		#2
itsme_kit Senior Member Join Date: Jan 2012 Posts: 197 Rep Power: 14	Hi Claudia I would really appreciate that you could share more details about step 2, 3 and 4. Especially, how to implement those steps in cfMesh? Many thanks. Best Regards, Ke

September 21, 2022, 06:59		#3
CRI_CFD Member Richardpluff Join Date: May 2014 Posts: 95 Rep Power: 12	Hi guys, Did you manage to merge nodes on the interface zones so mesh is comformal? I ma struggling on how to do it. cfMesh do a nice work, but after mergeMeshes nodes at the interface are not connected... Thanks in advance