Accession Number : ADA181667

Title :   Coupling between Acoustic Velocity Oscillations and Solid Propellant Combustion.

Descriptive Note : Final technical rept. 1 Mar 81-15 Oct 85,

Corporate Author : UNITED TECHNOLOGIES CHEMICAL SYSTEMS SAN JOSE CA

Personal Author(s) : Brown,R. S. ; Blackner,A. M. ; Willoughby,P. G. ; Dunlap,R.

Report Date : 01 AUG 1986

Pagination or Media Count : 199

Abstract : The fluid mechanics of the coupling between acoustic waves and the solid propellant combustion have been studied in a cold flow simulation of a solid propellant rocket motor. The axial variation of the oscillatory heat flux shows substantial deviations from the behavior expected from both the linear and nonlinear heuristic models of velocity coupling that are currently used in combustion stability analyses. Keywords: solid propellants, combustion, acoustics, instability.

Descriptors :   *ACOUSTIC VELOCITY, *OSCILLATION, *COMBUSTION, *SOLID PROPELLANTS, *SOLID PROPELLANT ROCKET ENGINES, ACOUSTICS, COLD FLOW, SIMULATION, COMBUSTION STABILITY, STABILITY, HEURISTIC METHODS, LINEARITY, MATHEMATICAL MODELS, HEAT FLUX, ACOUSTIC WAVES, VARIATIONS, FLUID MECHANICS, NONLINEAR SYSTEMS

Subject Categories : Combustion and Ignition
      Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE