SMALL-AMPLITUDE COMBUSTION PRESSURE OSCILLATIONS IN THE GAS ROCKET.

Abstract

The problem of small-amplitude, high-frequency, longitudinal combustion pressure oscillations in a rocket motor burning premixed gaseous propellants is the object of study of the analysis. Combustion zone chemical kinetics is found to be the driving mechanism of the phenomenon. A linearized, small-perturbation analysis is used to investigate the propagation of non-isentropic waves through the non-adiabatic flame zone. Effects of steady state chamber operating parameters on the amplification of oscillations are then presented with comparison to experimental trends. For example, in the equivalence ratio - chamber length stability plot a certain degree of correlation is noted. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1966
Accession Number
AD0633308

Entities

People

  • P. J. Goede

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Adiabatic Flames
  • Amplification
  • Amplitude
  • Chemical Kinetics
  • Chemical Reactions
  • Combustion
  • Exothermic Reactions
  • Flames
  • Frequency
  • Kinetics
  • Oscillation
  • Perturbations
  • Propellants
  • Rocket Engines
  • Rockets
  • Steady State

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Combustion science or combustion engineering.
  • Fluid Dynamics.