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Polyhedral Mesh Generation and Optimization for Non-manifold Domains

Garimella, Rao V., Jibum Kim, and Markus Berndt

22nd International Meshing Roundtable, Springer-Verlag, pp.313-330, October 13-16 2013

IMR
PROCEEDINGS

22nd International Meshing Roundtable
Orlando, FL
October 13-16,2013

Los Alamos National Laboratory, Los Alamos, NM, U.S.A.
Email: {rao,jibumkim,berndt}@lanl.gov

Summary
We present a preliminary method to generate polyhedral meshes of general non-manifold domains. The method is based on computing the dual of a general tetrahedral mesh. The resulting mesh respects the topology of the domain to the same extent as the input mesh. If the input tetrahedral mesh is Delaunay and well-centered, the resulting mesh is a Voronoi mesh with planar faces. For general tetrahedral meshes, the resulting mesh is a polyhedral mesh with straight edges but possibly curved faces. The initial mesh generation phase is followed by a mesh untangling and quality improvement technique.We demonstrate the technique on some simple to moderately complex domains.

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