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Combustion, Explosion and Shock Waves

2017 year, number 5

Calculation of Pressure in a Solid-Propellant Rocket Motor with the Use of a Real Dependence of the Solid Propellant Burning Rate on Pressure

A. M. Lipanov
Keldysh Institute of Applied Mathematics, Russian Academy of Sciernces, Moscow 125047, Russia
Keywords: твердое топливо, скорость горения, ракетный двигатель, solid propellant, burning rate, rocket motor

Abstract

Five variants of calculating the burning rate of a solid propellant as a function of the pressure in a solid-propellant rocket motor are considered. Two variants of analytical expressions are proposed for approximating real dependences. In all variants, the pressure in the rocket motor can be presented by simple analytical expressions as a function of solid propellant parameters, charging conditions, and structural factors of the charge and motor.