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Adaptive Hybrid Grids for Diverse Industrial Applications

Khawaja, Aly, Yannis Kallinderis and Harlan McMorris

Proceedings, 7th International Meshing Roundtable, Sandia National Lab, pp.167-184, October 1998


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

Dept. of Aerospace Engineering and Engineering Mechanics
The University of Texas at Austin
Austin, TX 78712

An adaptive hybrid prismatic/tetrahedral grid generation method is described and applied to complex geometries for diverse industrial applications. The method consists of using a surface mesh generator to triangulate the geometry to be modeled. The volume mesh is then created using prismatic and tetrahedral elements. The prisms cover the region close to each body's surface for better resolution of viscous gradients, while tetrahedra are created in the remainder of the domain. An adaptive redistribution scheme is used to better resolve boundary layers. The grid generator is tested with various complex geometries and the resulting hybrid meshes are presented. The applicability of the adaptive hybrid grid generator over a wide range of geometries with minimal user interaction demonstrates the robustness and universality of the method.

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