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Unstructured Surface Grid Generation Using Global Mapping and Physical Space Approximation

Marcum, David L. and Adam Gaither

Proceedings, 8th International Meshing Roundtable, South Lake Tahoe, CA, U.S.A., pp.397-406, October 1999

INTERNATIONAL
MESHING
ROUNTABLE

NSF Engineering Research Center for Computational Field Simulation, Mississippi State University
Email: ( marcum | adam ) @erc.msstate.edu

Abstract
Procedures are presented for efficient generation of high-quality unstructured surface grids. The overall procedure is based on the well proven Advancing- Front/Local-Reconnection (AFLR) method. The surface grid procedure uses an approximate physical space grid to define the surface during grid generation. The mapped space coordinates are mapped back to the actual surface at completion. Multiple surface definition patches are grouped into a single surface. A global mapping transformation is generated for the single surface using the grouped surface connectivity. The mapping coordinates are obtained by solving a coupled set of Laplacian equations. Results are presented which demonstrate that high-quality unstructured grids can be efficiently generated on surfaces defined by multiple patches using these procedures

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