Abstract

Abstract : This paper outlines a number of basic problems in the theory of steady-state combustion of solid propellants, particularly of the ammonium perchlorate composite type. It represents an extension of the earlier research at Princeton that led to a theoretical burning rate law for composite propellants that was based on the concept of granular diffusion flame. This paper is in the nature of a progress report in which the new experimental approaches are described, and some puzzling difficulties are analyzed. Specifically, the experiments deal with three topics: refinement of methods for measuring burning rate; the role of radiative energy transfer in the burning process; and the connection between oxidizer particle size and the b parameter in the above-mentioned theoretical burning rate law.

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