Polyhedral Mesh Generation

Proceedings, 9th International Meshing Roundtable, Sandia National Laboratories, pp.57-67, October 2000

MESHING
RESEARCH
CORNER

Wayne Oaks and Stefano Paoletti
adapco Ltd, 60 Broadhollow Road, Melville 11747 New York, USA
Email: wayne@adapco.com

Abstract
A new methodology to generate a hex-dominant mesh is presented. From a closed surface and an initial all-hex mesh that contains the closed surface, the proposed algorithm generates, by intersection, a new mostly-hex mesh that includes polyhedra located at the boundary of the geometrical domain. The polyhedra may be used as cells if the field simulation solver supports them or be decomposed into hexahedra and pyramids using a generalized mid-point-subdivision technique. This methodology is currently used to provide hex-dominant automatic mesh generation in the preprocessor pro*am of the CFD code STAR-CD.

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