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Combustion response to compositional fluctuationsA mechanism involving compositional fluctuations at certain frequencies is examined by which the heterogeneity of a composite solid propellant may contribute directly to the combustion response function of combustion instability theory. A combustion model appropriate to ammonium perchlorate (AP) is used to derive the combustion response to compositional fluctuations, and the properties of the combustion response are discussed in terms of the theoretical results obtained. The concentration exponent, i.e., the dependence of the burn rate on AP concentration, is found to be a signficant combustion parameter and to have a tremendous range of variability. It is suggested that the combustion response to compositional fluctuations may be a dominating factor in driving combustion instability.
Document ID
19830035522
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cohen, N. S.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena; Cohen Professional Services, Inc. Redlands, CA, United States)
Strand, L. D.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1983
Subject Category
Propellants And Fuels
Report/Patent Number
AIAA PAPER 83-0476
Meeting Information
Meeting: American Institute of Aeronautics and Astronautics, Aerospace Sciences Meeting
Location: Reno, NV
Start Date: January 10, 1983
End Date: January 13, 1983
Accession Number
83A16740
Funding Number(s)
CONTRACT_GRANT: AF-AFOSR-ISSA-81-0019
Distribution Limits
Public
Copyright
Other

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