Hello everyone, I am trying to mesh a cross-cavity with high order tetrahedron element (tetrahedron 10) and apply periodic boundary condition in x direction and y direction. As the periodic boundary condition has nothing to do with the cavity, you can consider the cross-cavity as a cube.
I have used 'periodic surfaces' and find the mesh of the two opposite surface is identical. So far so good. Then when I look into the .msh file and try to extract the point pairs in $Periodic $EndPeriodic, I find that only the nodes on the vertex of triangle are listed there. The internal nodes for each edge are not listed. Does anyone have successfully extract the periodic pairs of internal nodes of each edge ? Thanks. Nan LI
cross_cavity.geo
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