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Published 1977 | public
Journal Article

Role of Condensed Phase Details in the Oscillatory Combustion of Composite Propellants

Abstract

The response functions of composite propellants are theoretically derived, including explicitly the pressure-dependent degradation term in the condensed phase, hypothesizing that the overall rate-limiting reactions are in the relatively low temperature condensed phase. The method of "inner" and "outer" expansions with the reduced activation energy as the singular perturbation parameter has been employed. The results cover subsurface reactions with and without surface reactions, adiabatic and uniform-combustion models for the quasisteady gas phase processes. The response functions display several experimentally observed features like dependence on mean pressure and the instability behavior of some "zero-n" propellants.

Additional Information

© Gordon and Breach Science Publishers Ltd., 1977. Received September 28, 1976; in final form December 7, 1976. This work was performed for JPL (NASA Contract NAS 7-100) under the Work Order 61496. The authors thank Mr. Warren Dowler for helpful discussions and his enthusiastic encouragement at all stages.

Additional details

Created:
August 19, 2023
Modified:
October 20, 2023