Hi everybody, I am looking for a way to tag the interface between two subdomains in dolfinx (if this is not already done in, e.g., gmsh). The cell tags are defined for each cell. My idea was to write all nodes that belong to each cell tag to a list and find duplicate nodes as they belong to the in…

You can use the facet_to_cell connectivity to do this. Consider the following: import numba import numpy.typing as npt import dolfinx from mpi4py import MPI import numpy as np import time N = 100 mesh = dolfinx.mesh.create_unit_square(MPI.COMM_WORLD, N, N) def some_cells(x): return (abs(x[0…

Tag entities between two subdomains

mesh

tuderic March 21, 2023, 4:03pm 2

The solution is similar to this post: Plotting subdomains/internal boundaries - #8 by dokken

Topic		Replies	Views
What is the more succint way to get the "cell" and "facet" tags? mesh	5	378	October 27, 2023
Mesh entities of dimension 1have not been created dolfinx mesh	2	33	July 11, 2024
Transfer meshtags to submesh in dolfinx mesh	9	1100	December 22, 2023
Create corresponding cell tags from existing facet tags dolfinx mesh	0	27	February 20, 2025
Identifying subdomains from level set function on fenicsx dolfinx	7	702	January 23, 2024

Tag entities between two subdomains

Related topics