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Single block three-dimensional volume grids about complex aerodynamic vehiclesThis paper presents an alternate approach for the generation of volumetric grids for supersonic and hypersonic flows about complex configurations. The method uses parametric two dimensional block face grid definition within the framework of GRIDGEN2D. The incorporation of face decomposition reduces complex surfaces to simple shapes. These simple shapes are combined to obtain the final face definition. The advantages of this method include the reduction of overall grid generation time through the use of vectorized computer code, the elimination of the need to generate matching block faces, and the implementation of simplified boundary conditions. A simple axisymmetric grid is used to illustrate this method. In addition, volume grids for two complex configurations, the Langley Lifting Body (HL-20) and the Space Shuttle Orbiter, are shown.
Document ID
19940013003
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Alter, Stephen J. (Lockheed Engineering and Sciences Co. Hampton, VA., United States)
Weilmuenster, K. James (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 6, 2013
Publication Date
November 1, 1993
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
NAS 1.15:108986
NASA-TM-108986
Accession Number
94N17476
Funding Number(s)
PROJECT: RTOP 506-40-91-02
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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