Combustion response functions of homogeneous propellants

Abstract

This paper evaluates the applicability of classical response function theory to describe the combustion response of homogeneous propellants. A steady-state model is used to calculate upper-limit frequencies for the validity of the quasi-steady gas assumption. Steady-state models are also used to calculate the parameters needed as inputs for the response function theory. Calculoted response functions are compared to experimental data acquired from T-burners. It is concluded that the classical theory is descriptive of the combustion response of homogeneous propellants. Nomenclature A- Combustion parameter Characteristic of the condensed phose Combustion parameter characteristic of the gas phase Ratios of time constants, Egs. (1) and (3) Specific heat of the gas Specific heat of the solid B