Tetrahedral Mesh Generation and Optimization

Numerical Grid Generation in Computational Field Simulations, Ed. M. Cross., B. K. Soni, J. F. Thompson, J. Hauser, P. R. Eiseman, Proceedings of the 6th International Conference, held at the University of Greenwich, pp.337-349, July 1998

MESHING
RESEARCH
CORNER

Timothy J. Baker
Geometricon, L.L.C. and Dept. MAE, Princeton University
John C. Vassberg
Geometricon, L.L.C. Princeton, NJ 08540, U.S.A.

Abstract
We decribe a new tetrahedral mesh generator that is based on the Delaunay technique and is able to create volume meshes with good quality tetrahedra around complex geometries. The method exploits edge/face swapping techniques and point insertion to re-establish the boundary surface. Insertion of domain points at circum-centers of tetrahedra, followed by edge/face swapping to remove slivers, creates a volume mesh with a smooth gradation in mesh size and low aspect ratio tetrahedra.