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Development of an upwind, finite-volume code with finite-rate chemistryUnder this grant, two numerical algorithms were developed to predict the flow of viscous, hypersonic, chemically reacting gases over three-dimensional bodies. Both algorithms take advantage of the benefits of upwind differencing, total variation diminishing techniques and of a finite-volume framework, but obtain their solution in two separate manners. The first algorithm is a zonal, time-marching scheme, and is generally used to obtain solutions in the subsonic portions of the flow field. The second algorithm is a much less expensive, space-marching scheme and can be used for the computation of the larger, supersonic portion of the flow field. Both codes compute their interface fluxes with a temporal Riemann solver and the resulting schemes are made fully implicit including the chemical source terms and boundary conditions. Strong coupling is used between the fluid dynamic, chemical and turbulence equations. These codes have been validated on numerous hypersonic test cases and have provided excellent comparison with existing data. This report summarizes the research that took place from August 1,1994 to January 1, 1995.
Document ID
19950020340
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Molvik, Gregory A. (MCAT Inst. San Jose, CA, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1995
Subject Category
Aerodynamics
Report/Patent Number
NAS 1.26:197747
MCAT-95-01
NASA-CR-197747
Accession Number
95N26760
Funding Number(s)
CONTRACT_GRANT: NCC2-498
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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