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Hybrid Mesh Generation for Viscous Flow Simulation

Wang, Yuanli and Samuel Murgie

Proceedings, 15th International Meshing Roundtable, Springer-Verlag, pp.109-126, September 17-20 2006

IMR
PROCEEDINGS

15th International Meshing Roundtable
Birmingham, Alabama, U.S.A.
September 17-20, 2006

ALGOR, Inc., 150 Beta Dr., Pittsburgh, PA USA, 15238
ywang@algor.com, smurgie@algor.com

Abstract
This paper presents a robust and automated approach to generate unstructured hybrid grids comprised of prismatic and tetrahedral elements for viscous flow computations. The hybrid mesh generation starts from a triangulated surface mesh. The prismatic elements are extruded based on the weak solutions of the Eikonal equation to generate anisotropic elements at boundaries, and finally the isotropic tetrahedral grids are generated to fill the rest of the domain. The presented hybrid meshing algorithm was validated using a ball valve model under both steady and unsteady conditions.

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