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Some experiments related to L-star instability in rocket motors

Kumar, R. N. and McNamara, R. P. (1973) Some experiments related to L-star instability in rocket motors. AIAA Papers, AIAA 73-1300. American Institute of Aeronautics and Astronautics .

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The influnce of condensed phase heterogeneity on the L* instability of nonmetallized AP/PBAN propellants is explored using four propellants (with monomodal AP particle distributions having 50 per cent weight average points at 11, 39.5, 175, and 350 microns). An economical firing program is used. One-dimensional nature of the Helmholtz mode and the complex nature of the chuff mode are revealed through color movies. The stability boundary on the L*-pressure plot is found to be parabolic. Frequency correlations and many other features reveal the important role of condensed phase details in propellant combustion.

Item Type:Report or Paper (Report)
Additional Information:© 1973 AIAA. This work was supported by NASA under the Jet Propulsion Laboratory contract NAS 7-100. Research Fellow in Jet Propulsion. Undergraduate student, Applied Physics. The authors thank Prof. Fred Culick, Mr. Warren Dowler and Mr. Winston Gin, for their interest in these studies; Mr. Robert Grafius for instrumentation support; Messrs. Leon Strand and Gary Reedy for help during the initial stages; Messrs. Joseph Hance, Larry Ford, Joseph Gurak, Herb Jeffries, Stephen Roche and Fred Tervet for propellant processing and Mr. Anthony Rasmussen for technician help.
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Guggenheim Jet Propulsion CenterUNSPECIFIED
Record Number:CaltechAUTHORS:20101214-135308202
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:21361
Deposited By: Ruth Sustaita
Deposited On:15 Dec 2010 18:52
Last Modified:26 Dec 2012 12:45

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