I want to solve my PDE problem on multidomain geometry. I imported mesh definition to Matlab and I tried to specify multidomain geometry using geometryFromMesh(model,nodes,elements,ElementIDToRegionID) I get the geometry with appropriate number of cells, but several faces that I don't understand where from they comes. In particular, my geometry has three cells/materials and six material interfaces (material1/material2, material1/material3, material2/material3, material1/exterior, material2/exterior and material3/exterior). However, Matlab somehow defines 39 faces.
I would like to know:
- How Matlab define those faces?
- How I can get info which nodes are in any particular face?
- How to force a Matlab to define faces reasonably for my problem (e.g. on different material interface), so that I can specify boundary conditions?