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The Hex-Tet Hex-Dominant Meshing Algorithm as Implemented in CUBIT

Meyers, Ray J., Timothy J. Tautges, Philip M. Tuchinsky

Proceedings, 7th International Meshing Roundtable, Sandia National Lab, pp.151-158, October 1998


7th International Meshing Roundtable
October 26-28, 1998
Dearborn, Michigan, USA

Ray J. Meyers (
Timothy J. Tautges (
Sandia National Laboratories
P.O. Box 5800
Albuquerque, NM

Dr. Philip M. Tuchinsky (
Ford Research Laboratory
Mail Drop 2122 SRL
P. 0. Box 2053
Dearborn,MI 48121 USA

This is a report of the current status of the Hex-Tet algorithm as implemented in the CUBIT toolset. The Hex-Tet algorithm begins by generating a partial hex mesh using an advancing front "Plastering" algorithm. The boundary of any remaining void is optionally "cleaned- up" to improve its shape and/or other properties. The quad boundary is then converted to a triangular boundary by one of three available methods. Finally, the triangle-bounded void is filled with tetrahedra using the tet-generation capabilities within CUBIT. The result is a mixed-element mesh containing hexahedra, tetrahedra, and optionally pyramids. A set of test problems is described which is used to generate data concerning the robustness and speed of the algorithm, as well as properties of the resulting meshes.

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