Preparing the Geometry for Meshing Using Geometry Cleanup
To avoid unnecessary mesh refinements and bad quality elements relating to small details in the geometry, use Geometry Cleanup to prepare the geometry for meshing (see Figure 8-13). Small details, such as vertices with continuous tangent, short edges, small and narrow (sliver) faces, narrow face regions, and thin domains, can result in a high mesh resolution as each entity needs to be resolved by at least one mesh element. Small details can also influence the quality of the mesh elements, which might affect the possibility to reach a converged solution. See the section Mesh Element Quality for more information about element quality measures.
Figure 8-13: Comparing the mesh of a CAD geometry before and after building Remove Details.
Geometry Cleanup automatically detects and removes small details from the geometry. Modify the detail size to remove more or less details in the geometry. After running the cleanup, resolve the mesh only in regions of importance for the accuracy of the solution.
For more information geometry cleanup, refer to the section Geometry Cleanup