Checking Suitability for Directed Meshing

The directed meshing tool takes a surface mesh that is generated on a source surface and sweeps it through the volume to the target surface. The tool uses the remaining surfaces to guide the mesh. Therefore, each part that you choose to use in directed meshing must have at least three distinct surfaces. You can make sure that the parts satisfy this requirement by looking through the defined surfaces of each geometry part.

  1. Create a geometry scene.
View the CAD bodies and parts:
  1. Expand the Geometry > 3D-CAD Models > 3D-CAD Model 1 > Body Groups node.
  2. To view the parts that are shown in the geometry scene, expand the Geometry > Parts node.
Each part is associated with a CAD body. To use directed meshing, associate each part with exactly one body.
  1. Expand all Geometry > Parts nodes.
  2. Multi-select all [Part] > Surfaces > [source] nodes.
    The selected surfaces are highlighted in the Geometry Scene.

    The subdivision of part surfaces has been chosen to demonstrate the two methods available in the Directed Mesh tool for creating quadrilateral meshes on the source surfaces:
    • Using manually created patches
    • Using an extracted surface of an existing volume mesh

    The Stator Steel.source, Slot.source, and Air.source faces are meshed using the patch meshing option. They can be meshed together since the source surfaces are connected and lie on the same plane. The patch mesh is then swept through the volume of the Stator Steel, Slot, and Air parts to produce a volume mesh for these parts.

    The Magnet.source and Rotor.source faces are meshed using an existing mesh of a part surface they are in contact with. The Air.bottom surface mesh is mapped to the Magnet.source surface, allowing you to generate a volume mesh for the Magnet part. The Magnet.target surface mesh is then mapped to the Rotor.source surface. Note the Air.bottom surface has been separated out from the other Air surfaces to represent the surface that is in contact with the Magnet.source surface. This breakdown of surfaces is a requirement if you want to map an existing mesh to a source surface mesh–both parts in contact must have a separate part surface for the interface.