) to create one domain for each (connected) finite void region that is defined by an imported 3D mesh. Together with the Free Tetrahedral operation, the Create Domains operation makes it possible to mesh imported surface meshes directly (that is, without creating a geometry) as long as the imported surface mesh is of good quality. Create Domains nodes are available from the Create Entities menu (
) on the Mesh ribbon or by right-clicking the main Mesh node.
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Note that creating domains can modify the number of geometric domains in the mesh. Thus when you are adding this operation to a meshing sequence that is conforming with the component's geometry, a new meshing sequence that is defining its own geometric model is automatically created, and the Create Domains node is added to this new sequence. For more information see The Mesh Node.
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Most physics require a mesh on the domains. Use the Free Tetrahedral operation to fill the unmeshed domains with tetrahedral elements.
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See STL Import 2 — Remeshing an Imported Mesh: Application Library path COMSOL_Multiphysics/Meshing_Tutorials/stl_vertebra_mesh_import.
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