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Stagnation point nonequilibrium radiative heating and the influence of energy exchange modelsA nonequilibrium radiative heating prediction method has been used to evaluate several energy exchange models used in nonequilibrium computational fluid dynamics methods. The radiative heating measurements from the FIRE II flight experiment supply an experimental benchmark against which different formulations for these exchange models can be judged. The models which predict the lowest radiative heating are found to give the best agreement with the flight data. Examination of the spectral distribution of radiation indicates that despite close agreement of the total radiation, many of the models examined predict excessive molecular radiation. It is suggested that a study of the nonequilibrium chemical kinetics may lead to a correction for this problem.
Document ID
19910034741
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hartung, Lin C.
(NASA Langley Research Center Hampton, VA, United States)
Mitcheltree, Robert A.
(NASA Langley Research Center Hampton, VA, United States)
Gnoffo, Peter A.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
AIAA PAPER 91-0571
Accession Number
91A19364
Distribution Limits
Public
Copyright
Other

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