How to deal with CAD-geometry

In general hexahedra-elements perform better than tets but if the mesh should be derived from a cad-geometry it is often more convenient to create a tetrahedra mesh as to modify or rebuild the geometry to make it meshable with hexahedra-elements. The following section gives some hints which alternatives are available:

The following section describes the process to generate a tet-mesh with cgx based on a cad model:

Figure 14: CAD-geometry meshed with tet-elements

Additional remarks: