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Condensed Phase Details in the Time-Independent Combustion of AP/Composite Propellants

Kumar, R. N. (1973) Condensed Phase Details in the Time-Independent Combustion of AP/Composite Propellants. Combustion Science and Technology, 8 (3). pp. 133-148. ISSN 0010-2202. http://resolver.caltech.edu/CaltechAUTHORS:20101214-142422277

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Abstract

The problem of nonmetallized AP/composite propellant combustion is studied with the aim of coherently interpreting apparently diverse experimental data. Three fundamental hypotheses are introduced: the extent of propellant degradation at the vaporization step has to be specified through a scientific criterion; condensed phase degradation of AP to vaporizable fragments is the overall rate-limiting reaction; the rate of combustion in the gas phase is controlled by diffusive-mixing processes. Theoretical predictions of the regression rates of AP are seen to match well with experimental observations (both hot-plate pyrolysis and single-crystal deflagration). Theoretical curves of regression rate are presented for a typical composite propellant. The gas phase processes are discussed qualitatively. It is seen through analyses that either of the two familiar models for the gas phase (flame sheet approximation and uniform combustion) describes the general behavior adequately, hence de-emphasizing the role of gas phase details in propellant combustion.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1080/00102207308946637 DOIUNSPECIFIED
http://www.informaworld.com/smpp/content~db=all?content=10.1080/00102207308946637PublisherUNSPECIFIED
Additional Information:© 1973, Gordon and Breach, Science Publishers Ltd. Received October 9, 1972. The author wishes to thank Professor Fred E. C. Culick for many helpful comments and encouragement, and Mr. Warren L. Dowler for his interest in these studies and encouragement. The work was supported by NASA under the Jet Propulsion Laboratory Contract NAS 7-100.
Group:Guggenheim Jet Propulsion Center
Funders:
Funding AgencyGrant Number
NASA/JPLNAS 7-100
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Other Numbering System NameOther Numbering System ID
Guggenheim Jet Propulsion CenterUNSPECIFIED
Record Number:CaltechAUTHORS:20101214-142422277
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20101214-142422277
Official Citation:Kumar, R. N. (1973). "Condensed Phase Details in the Time-Independent Combustion of AP/Composite Propellants." Combustion Science and Technology 8(3): 133 - 148.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:21366
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:15 Dec 2010 19:46
Last Modified:26 Dec 2012 12:45

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