3-DIMENSIONAL UNSTRUCTURED MESH GENERATION .3. VOLUME MESHES

Volume meshes are generated through three-dimensional triangulation an d interior point creation based on the surface meshes. To deal with no n-convex geometries, boundary surface conformity is gained via edge sw apping, boundary edge and surface recovery, and the robustness of the algorithm has been discussed in terms of the accuracy of geometric jud gements. The performance of the mesh generator has been investigated b y means of numerical experiments, and examples have been tested to val idate the mesh generator. The possibility of extension of this mesh ge nerator to incorporate with analysis programs, in terms of adaptive an alysis, has been explored. This paper is also designed to briefly addr ess mesh quality measures, quality statistics and mesh smoothing techn iques. Using mesh quality metrics, visual quality assessment has been discussed. Furthermore, several general ways of visual representation of volume meshes have been introduced.