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[cfMesh] cfMesh 2D workflow layer optimization

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Old   March 22, 2018, 07:10
Default cfMesh 2D workflow layer optimization
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Earl Wilks
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Hey, I've been having some success with cfMesh for 3D problems, and have recently started exploring the 2D cartesian meshing workflow to answer some specific questions about the numerics I'm using with a less expensive simulation.

Two features that I've made use of with 3D meshes don't seem to work in the 2D workflow, namely:
  • layer optimization which smooths the boundary layer cell normals. This doesn't seem to run at all in the cartesian2DMesh workflow.
  • refinementThickness does result in greater refinement near the specified patch, but the transition between refinement layers is far more abrupt than in the cartesianMesh case.
I don't think its an issue with the meshDict (spelling, etc.) because with the same meshDict and a suitable geometry the cartesianMesh routine does generate these features.


Does anyone have any ideas? Is the cartesian2DMesh routine simply not as feature rich as the more general cartesianMesh case? Should I just give up, and generate a thin 3D mesh and then extrude a surface à la snappyHexMesh?



Thanks in advance for your help!
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boundary cell, cfmesh, refinement regions


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