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Running parallel case after parallel meshing with snappyHexMesh?

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Old   August 31, 2015, 23:04
Default Running parallel case after parallel meshing with snappyHexMesh?
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I am working on simulating steady state resistance for ship hydrodynamics, using LTSInterFoam, and meshing with snappyHexMesh. In order to speed up the meshing process and use resources to capacity, I am meshing in parallel, which works fine, until I try to run.

My exact process is:
  1. Background mesh with blockMesh
  2. Refine isotropically and anisotropically with refineMesh and topoSet
  3. Decompose domain with decomposePar (incl. 0 and constant directories)
  4. Run snappyHexMesh in parallel (works excellent)
  5. Run setFields in parallel mode to set alpha.water (VOF-fraction)
  6. Run renumberMesh in parallel mode to reduce bandwith usage
  7. Try to run LTSInterFoam in parallel. Here it fails...

When I try to run the solver, it fails with a multitude of errors, complaining that it cant find faces, that mesh sizes are not the same etc.

However, I tried to run reconstructParMesh, followed by again decomposing mesh, which worked, but led to me loosing the boundary layer refinement. Have any of you succeeded in running a parallel solver directly after parallel meshing with snappyHexMesh?
Do you have any ideas of what might be causing this?

EDIT: I figured it out. I just needed to run "patchSummary" to set the boundary conditions on the mesh after snapping and layer insertion!

Best regards,
nimasam likes this.

Last edited by Adam Persson; September 1, 2015 at 00:55. Reason: Solved problem...
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