Partitioned mesh: treatment of internal boundaries??

Mesh generators, CAD programs, and other tools
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bengt
Posts: 119
Joined: 23 Jul 2010, 10:27

Partitioned mesh: treatment of internal boundaries??

Post by bengt »

Hi,
I'm trying to create a partitioned hexaeder mesh of a cylinder (utilizing symmetry) using SALOME. I followed the multy-body workflow given in the Elmer Wiki, and principally everything is working correctly. After surface division and re-arrangement in ElmerGui, I end up with one body and the correct number of outer boundaries (see attached image of the resulting mesh). However, I just cannot get rid of the 3 additional internal boundaries, which were needed only for the meshing algorithms but not for the simulation. Is it possible to avoid their creation during the grouping and meshing process?? Or, would it be correct to simply ignore these internal boundaries during bc set-up within the sif's boundary condition section??
Is there any kind of standard Salome-workflow for such (rather common) meshing approaches??
I'd greatly appreciate any suggestions!!
Regards
bengt
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cylinder.png
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raback
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Re: Partitioned mesh: treatment of internal boundaries??

Post by raback »

Hi

Internal boundary with no BC does not really matter. BCs are only applied to the boundaries with some definitions.

-Peter
bengt
Posts: 119
Joined: 23 Jul 2010, 10:27

Re: Partitioned mesh: treatment of internal boundaries??

Post by bengt »

Hi Peter,
thanks for the info!!
Regards
bengt
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