[Commercial meshers] Connecting meshes after cfMesh for multiRegion

Clau.77 · July 12, 2021, 04:55

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, 03:02

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, 05:59

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, 04:55	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?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[cfMesh] How to start using cfMesh with OpenFOAM v1706?	Carno	OpenFOAM Community Contributions	1	November 1, 2018 16:28
[cfMesh] Non-conformal meshes using cfMesh	Warlord	OpenFOAM Community Contributions	2	August 1, 2017 04:54
Connecting 3 separated meshes	amin_u50	AVL FIRE	3	July 9, 2015 10:03
Hex and Tet meshes - simplefoam comparison	danvica	OpenFOAM Running, Solving & CFD	10	January 4, 2013 01:18
Connecting copies of meshes to a single mesh	Louis Le Grange	OpenFOAM	2	November 14, 2009 08:01

July 26, 2022, 03:02		#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, 05:59		#3
CRI_CFD Member Richardpluff Join Date: May 2014 Posts: 95 Rep Power: 11	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