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splitMeshRegions adds all cells to cellZone

Functionality to add/problem to solve

(Brief scope) splitMeshRegions -cellZones will split the mesh according to the cellZones. It then keeps all the zones in the corresponding cellZone so now all cells in a region are in the cellZone. This can give problems if other cellZones are needed.

Target audience

cht cases which are generated from a single mesh

Proposal

  • explicitly remove the cellZones (since all the cells in the region are in the cellZone) when running splitMeshRegions -cellZones
  • or suppress warnings from e.g. reconstructParMesh about cells being in multiple cellZones

What does success look like, and how can we measure that?

E.g. tutorials/heatTransfer/chtMultiRegionSimpleFoam/cpuCabinet which does

  • splitMeshRegions -cellZones
  • topoSet
  • reconstructParMesh

@andy @Prashant