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Some New Results of Chuffing in Composite Solid Propellant Rockets

Raghunandan, BN and Bhaskariah, P (1985) Some New Results of Chuffing in Composite Solid Propellant Rockets. In: Journal of Spacecraft and Rockets, 22 (2). pp. 218-220.

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Chuffing is one of the low-frequency instabilities in solid propellant rockets functioning at low chamber pressures. In chuffing, the rocket motor experiences brief spurts of combustion and consequent pressure buildup, followed by periods of near ambient pressures in the combustion chamber. This period of dormancy can extend up to a few seconds. According to many earlier workers,1-3 during the low-pressure induction period, slow reactions take place in a subsurface layer of the propellant which eventually reaches the temperature where a thermal explosion can occur. Rapid burning of this preheated layer is followed by a sudden ceasing of propellant combustion as the layers beneath it, being at low temperature, cannot sustain the process. While this theory projects the condensed phase reactions as solely responsible for chuffing, there are also those which bring in the importance of gas phase processes.

Item Type: Journal Article
Publication: Journal of Spacecraft and Rockets
Publisher: American Institute of Aeronautics and Astronautics, Inc.
Additional Information: Copyright of this article belongs to American Institute of Aeronautics and Astronautics, Inc.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 11 Jul 2008
Last Modified: 19 Sep 2010 04:47
URI: http://eprints.iisc.ac.in/id/eprint/14968

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