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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
20040129614
Acquisition Source
Langley Research Center
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
September 7, 2013
Publication Date
January 1, 1991
Subject Category
Aeronautics (General)
Report/Patent Number
AIAA Paper 91-0571
Meeting Information
Meeting: AIAA 29th Aerospace Sciences Meeting
Location: Reno, NV
Country: United States
Start Date: January 7, 1991
End Date: January 10, 1991
Sponsors: American Inst. of Aeronautics and Astronautics
Distribution Limits
Public
Copyright
Public Use Permitted.

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