[petsc-users] How to construct DMPlex of cells with different topological dimension?

[TARDIEU Nicolas]

Dear all,

As a practitioner of structural mechanics, I modestly wish to support Yuan's argument. Model mixing, and consequently finite element dimension mixing, is (perhaps unfortunately) an inescapable practice of this engineering field. This has consequences not only on the nature of the meshes we use but also on the quasi-systematic recourse to linear relations (also named multipoints constraints, MPC) between the degrees of freedom of the different models (for example, linking a shell to a 3D part requires to write kinematic connections between displacements and rotations).
DMPlex handling such meshes would be a really great contribution for the structural mechanics community.


Best regards,
Nicolas




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