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Influence of Mechanical Properties on the Combustion of Propellants

Kumar, R. N. and Culick, F. E. C. (1973) Influence of Mechanical Properties on the Combustion of Propellants. Combustion Science and Technology, 8 (4). pp. 149-158. ISSN 0010-2202. doi:10.1080/00102207308946638.

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This work is aimed at experimentally exploring the effects of minor compositional variables upon the combustion behavior of composite solid propellants. More specifically, it is intended to determine the influence, if any, of ingredients that improve the mechanical properties upon the oscillatory combustion characteristics. Tests are carried out in the familiar Crawford bomb, a low-pressure L^* burner, and a high-pressure T-burner. Two families of propellants are investigated; each family consists of two propellants with a minor compositional variation between them. In the family that shows a decreasing (steady state) pressure index (n) with increasing pressures, all of the combustion characteristics are found to be very similar although the mechanical properties are widely different. In the other family, which shows an increasing n with increasing pressures, unmistakable differences are found between the two propellants in the low-pressure L ^* instability behavior (along with the differences in the mechanical properties), while the other combustion characteristics are almost identical. The results are interpreted to be consistent with a theory that highlights the importance of condensed phase heat-transfer effects.

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Additional Information:© 1973, Gordon and Breach, Science Publishers Ltd. Received March 6, 1973. This work was supported by the National Aeronautics and Space Administration under the Jet Propulsion Laboratory contract NAS-7-100. The authors express their gratitude to the Solid Propellant and Pyrotechnics section at JPL where this work was performed; they would like to specially thank Mr. Warren Dowler. The technical assistance of Mr. Robert McNamara in carrying out the tests and the instrumentation support of Mr. Robert Graftus are thankfully acknowledged.
Group:Guggenheim Jet Propulsion Center, GALCIT
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Guggenheim Jet Propulsion CenterUNSPECIFIED
Issue or Number:4
Record Number:CaltechAUTHORS:20101216-101742743
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Official Citation:Kumar, R. N. and F. E. C. Culicic (1973). "Influence of Mechanical Properties on the Combustion of Propellants." Combustion Science and Technology 8(4): 149 - 158.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:21392
Deposited By: Ruth Sustaita
Deposited On:17 Dec 2010 18:12
Last Modified:09 Nov 2021 15:56

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