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Proceedings Paper

A Numerical Method For Predicting Hypersonic Flowfields
Author(s): Robert W. MacCormack; Graham V. Candler
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Paper Abstract

The flow about a body traveling at hypersonic speed is energetic enough to cause the atmospheric gases to chemically react and reach states in thermal nonequilibrium. The prediction of hypersonic flowfields requires a numerical method capable of solving the conservation equations of fluid flow, the chemical rate equations for specie formation and dissociation, and the transfer of energy relations between translational and vibrational temperature states. Because the number of equations to be solved is large, the numerical method should also be as efficient as possible. The proposed paper presents a fully implicit method that fully couples the solution of the fluid flow equations with the gas physics and chemistry relations. The method flux splits the inviscid flow terms, central differences the viscous terms,preserves element conservation in the strong chemistry source terms, and solves the resulting block matrix equation by Gauss Seidel line relaxation.

Paper Details

Date Published: 18 May 1988
PDF: 7 pages
Proc. SPIE 0879, Sensing, Discrimination, and Signal Processing and Superconducting Materials and Intrumentation, (18 May 1988); doi: 10.1117/12.943987
Show Author Affiliations
Robert W. MacCormack, Stanford University (United States)
Graham V. Candler, Stanford University (United States)

Published in SPIE Proceedings Vol. 0879:
Sensing, Discrimination, and Signal Processing and Superconducting Materials and Intrumentation
James A. Ionson; Roy Nichols, Editor(s)

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