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Proposed radiometric measurement of the wake of a blunt aerobrakeThis paper describes the aerothermal environment in the afterbody region of a blunt entry body. Recent ground-based experiments and computational predictions of the afterbody flow structure and radiation are presented. The similarity between the flowfield structures observed in the ground-based experiments and that obtained by calculation is encouraging. Approximate calculations of the radiative heating rate to the base are presented. Many of the phenomena associated with the expanding flow at the corner and the formation of the wake neck, however, are not well understood and require further study. A flight experiment is described that would use spectral and total measurements of the wake radiation as a nonintrusive diagnostic method to provide insight into the thermodynamic state of the wake gas.
Document ID
19930055259
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Strawa, A. W.
(NASA Ames Research Center Moffett Field, CA, United States)
Park, C.
(NASA Ames Research Center Moffett Field, CA, United States)
Davy, W. C.
(NASA Ames Research Center Moffett Field, CA, United States)
Craig, R. A.
(NASA Ames Research Center Moffett Field, CA, United States)
Babikian, D. S.
(NASA Ames Research Center Moffett Field, CA, United States)
Prabhu, D. K.
(NASA Ames Research Center Moffett Field, CA, United States)
Venkatapathy, E.
(Eloret Inst. Palo Alto, CA, United States)
Date Acquired
August 16, 2013
Publication Date
December 1, 1992
Publication Information
Publication: Journal of Spacecraft and Rockets
Volume: 29
Issue: 6
ISSN: 0022-4650
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
AIAA PAPER 91-1408
Accession Number
93A39256
Funding Number(s)
CONTRACT_GRANT: NCC2-653
CONTRACT_GRANT: NCC2-420
Distribution Limits
Public
Copyright
Other

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