Boundary condition in Trixi with imported mesh with P4estmesh()

Specific Domains Modelling & Simulations
2

Hi,

So in principle this is possible, yes. See our documentation:
Tutorial and detailed instructions.

There are a couple things required to make this work, however.

  1. We support only linear quad/hex meshes. Support for higher-order elements is desired, see the corresponding issue. Other element types are yet somewhat further away, as p4est supports only quads/hexes.
  2. The boundary information is constructed based on the NSET information. So when exporting a mesh to .inp you need to select the Export all node options.
  3. To ensure correct export of the .msh via Gmsh to .inp you should set the geometric/elementary element ID to the physical ID (see number-of-tags of this documentation)