Accession Number:

AD0633308

Title:

SMALL-AMPLITUDE COMBUSTION PRESSURE OSCILLATIONS IN THE GAS ROCKET.

Descriptive Note:

Technical memo.,

Corporate Author:

JET PROPULSION CENTER PURDUE UNIV LAFAYETTE IND

Personal Author(s):

Report Date:

1966-06-01

Pagination or Media Count:

74.0

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

Subject Categories:

  • Combustion and Ignition
  • Rocket Engines
  • Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE