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[mesh manipulation] How to handle extra domain creation from splitMeshRegions?

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Old   March 31, 2021, 07:10
Default How to handle extra domain creation from splitMeshRegions?
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Sunag R A
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Dear All,


I have created a stl mesh using open3D from point cloud. This mesh was split into two domains as a patch and then added back using "surfaceAdd". Now, this mesh is implemented into snappyHexMeshDict.



I mesh is running well. But, when I do splitMeshRegion after some topoSet addition, it creates multiple domains, where my cellZoneRegion has only two regions and I need only these two regions.



The multiple domains has only one 1 cell in it. How to handle those.? Can it be addressed somehow in ChangeDictionary (Since I am doing chtMultiRegionSimpleFoam). Or the only way is to change the mesh itself?


Below is the snippet of splitMeshRegion.


Region Cells
------ -----
0 457997
1 241
2 1
3 1
4 1

Region Zone Name
------ ---- ----
0 1 gland
1 0 tumor
2 -1 domain2
3 -1 domain3
4 -1 domain4


Any leads will be appreciated.



Regards,
Sunag R A.
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