[mesh manipulation] Using stl to create CellZone -- CFD Online Discussion Forums

June 16, 2022, 06:35	Using stl to create CellZone	#1
Hr_kules Senior Member Nico Join Date: Jan 2022 Location: Germany Posts: 122 Rep Power: 6	Hey everyone, i have troubles with splitting my mesh for a multiregion mesh simulation. I created the mesh with snappyhexmesh without any problems, however after i split the mesh, the boundaries are all over the place and don't match any region i want. I use the standard command splitMeshRegions -cellZones -defaultRegionName plate -overwrite Now i want to try to use the flag cellZonesOnly as the error was resolved when i used an imported mesh from ansys. Since the geometry overlaps at certain points i want to use the stls to encapsulate any cells that reside within that surface of the stl. I am however quite uncertain on how to achieve this with toposet. Can somebody help?

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