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A package for 3-D unstructured grid generation, finite-element flow solution and flow field visualizationA set of computer programs for 3-D unstructured grid generation, fluid flow calculations, and flow field visualization was developed. The grid generation program, called VGRID3D, generates grids over complex configurations using the advancing front method. In this method, the point and element generation is accomplished simultaneously, VPLOT3D is an interactive, menudriven pre- and post-processor graphics program for interpolation and display of unstructured grid data. The flow solver, VFLOW3D, is an Euler equation solver based on an explicit, two-step, Taylor-Galerkin algorithm which uses the Flux Corrected Transport (FCT) concept for a wriggle-free solution. Using these programs, increasingly complex 3-D configurations of interest to aerospace community were gridded including a complete Space Transportation System comprised of the space-shuttle orbitor, the solid-rocket boosters, and the external tank. Flow solutions were obtained on various configurations in subsonic, transonic, and supersonic flow regimes.
Document ID
19900019993
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Parikh, Paresh (Vigyan Research Associates, Inc. Hampton, VA, United States)
Pirzadeh, Shahyar (Vigyan Research Associates, Inc. Hampton, VA, United States)
Loehner, Rainald (Vigyan Research Associates, Inc. Hampton, VA, United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1990
Subject Category
Aerodynamics
Report/Patent Number
NAS 1.26:182090
NASA-CR-182090
Accession Number
90N29309
Funding Number(s)
CONTRACT_GRANT: SBIR-02.04-0794
PROJECT: RTOP 324-02-00
CONTRACT_GRANT: NAS1-18670
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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