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Reflectance and unsteady temperature distribution of diffuse reflectorsThe applicability of a previously derived solution of the Kubelka-Munk differential equations for the reflectance of an absorbing and scattering material for the case of a zero absorption coefficient to the description of the reflectance of a weakly absorbing, highly scattering material is examined. A solution for the transient heating of a one-dimensional volume reflector is obtained, and the error incurred in the use of the zero absorption coefficient solution is assessed for early times appropriate to the entry heat protection system application. It is found that the small difference in reflectance causes a significant difference in internal temperature.
Document ID
19740032244
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Weston, K. C.
Reddy, R. S.
(Tulsa, University Tulsa, Okla., United States)
Date Acquired
August 7, 2013
Publication Date
December 1, 1973
Publication Information
Publication: AIAA Journal
Volume: 11
Subject Category
Thermodynamics And Combustion
Accession Number
74A14994
Funding Number(s)
CONTRACT_GRANT: NGR-37-008-003
Distribution Limits
Public
Copyright
Other

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