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The Applications of an Unstuctured Grid Based Overset Grid Scheme To Applied Aerodynamics

Wey, Thomas C.

Proceedings, 8th International Meshing Roundtable, South Lake Tahoe, CA, U.S.A., pp.163-169, October 1999

INTERNATIONAL
MESHING
ROUNTABLE

Thomas C Wey
Hernandez Engineering Inc. Houston, TX. U.S.A
Email: wey@euler.isc.nasa.gov

Abstract
The traditional structured grid based chimera grid scheme is extended to include the unstructured hexahedrons as the component grids. Recent developments of a quadrilateral based radiated grid (also known as hair grid) and a hexahe-dral based tree grid generators are described. The main input method for the quadrilateral dominated surface mesh generator is through IGES files from most CAD packages. Example is given for X-38, a crew return spacecraft de-signed by JSC/NASA.

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