A Computer Model of Flamelet Distribution on the Burning Surface Of a Composite Solid Propellant

摘要

The paper attempts to obtain an approximate distribution of oxidizer/fuel 9O/F) flamelets on the burn- ing surface of a composite solid propellant, mainly of the ammonium perchlorate (AP)-hydrocarbon (HC) binder variety commonly used in rocket propulsion applications today. A computer model is developed to simulate the random packing of oxidizer particles of different size distributions in the propellant. The focus of the present work is on the distinction between pockets of fine AP particles amidst the binder that may burn in a premixed O/F flame and the sufficiently large AP particles that burn with the surrounding vapor flow in an attached diffusion flame.