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Application of a flux-split algorithm to chemically relaxing, hypervelocity blunt-body flowsViscous, nonequilibrium, hypervelocity flow fields over two axisymmetric configurations are numerically simulated using a factored, implicit, flux-split algorithm. The governing gas-dynamic and species-continuity equations for laminar flow are presented. The gas-dynamics/nonequilibrium-chemistry coupling procedure is developed as part of the solution procedure and is described in detail. Numerical solutions are presented for hypervelocity flows over a hemisphere and over an axisymmetric aeroassisted orbital transfer vehicle using three different chemistry models. The gas models considered are those for an ideal gas, for a frozen gas, and for chemically relaxing air consisting of five species. The calculated results are compared with existing numerical solutions in the literature along the stagnation line of the hemisphere. The effects of free-stream Reynolds number on the nonequilibrium flow field are discussed.
Document ID
19870057560
Document Type
Conference Paper
Authors
Balakrishnan, A.
(MCAT Institute San Jose, CA, United States)
Date Acquired
August 13, 2013
Publication Date
June 1, 1987
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 87-1578
Accession Number
87A44834
Funding Number(s)
CONTRACT_GRANT: NCC2-456
Distribution Limits
Public
Copyright
Other

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