I have a complicated 3D mesh (loaded from a xdmf-file with cell data available, see the screenshot below for a clipped representation). To set the boundary conditions, I’m wondering if there is there a direct way (or a workaround) to automatically identify the facets or dofs of the mesh that sit at…

Identify facets on the (outer) boundary of a 3D mesh

francesco-ballarin July 25, 2024, 7:22am 2

1 Like

Topic		Replies	Views
Extra dofs selected when adjacent faces are combined in boundary conditions with 3D BDM (N2F) elements dolfinx	4	843	October 17, 2020
A bug appears when using locate_dofs_topological(...) General boundary-conditions	1	100	April 22, 2024
Extracting boundary facet connectivity and facet node coordinates from mesh mesh boundary-conditions , dolfinx	4	52	November 7, 2024
Misunderstanding regarding locate_dofs_topological General	2	360	March 1, 2023
How to create a volumetric (tdim) boundary condition u = u_D on \Omega_partial dolfinx	1	28	January 3, 2025