Accession Number : AD0776164

Title :   Triggering Axial Instabilities in Solid Rockets: Numerical Predictions,

Corporate Author : GEORGIA INST OF TECH ATLANTA SCHOOL OF AEROSPACE ENGINEERING

Personal Author(s) : Kooker,D. E. ; Zinn,B. T.

Report Date : NOV 1973

Pagination or Media Count : 17

Abstract : A theoretical model describing the nonlinear behavior of axial-mode intermediate frequency combustion instability in a solid rocket is developed. Numerical solutions have been obtained to the time-dependent conversation equations describing the one-dimensional two-phase flow in a solid propellant combustion chamber and choked nozzle system. Predictions of the engine response to various amplitude disturbances are discussed. Under certain conditions, the propellant burning rate exhibits sharp, finite-amplitude spikes which lead to large amplitude axial instabilities in the engine flow field. (Modified author abstract)

Descriptors :   *Solid rocket propellants, *Combustion, Predictions, Mathematical models, Burning rate, Flow rate

Subject Categories : Combustion and Ignition
      Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE