AN INVESTIGATION OF TRANSVERSE MODE COMBUSTION INSTABILITY IN LIQUID PROPELLANT ROCKET MOTORS

Abstract

The transverse modes of high frequency combustion instability in liquid propellant rocket motors are studied theoretically and experimentally. Preliminary experiment demonstrates the need for ADDITIONAL THEORETICAL ANALYSIS TO EXPLAIN: (1) the influence on stability of the orientation of the elements of the injection pattern with respect to the radial direction; (2) the greater tendency to instability of the spinning forms of tangential modes as compared to the standing forms; and (3) the effect of the distribution of injection across the injector face. The basic theory is derived for the case of a circularly cylindrical combustion chamber with uniformly distributed injection. Extensions of the basic theory are made to cover the cases of nonuniformly distributed injection, a variable angle sector motor, and more general time lag formulations. A series of experiments using both sector and full cylindrical motors is described.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1961
Accession Number
AD0259357

Entities

People

  • F. H. Reardon

Organizations

  • Princeton University

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Bessel Functions
  • Burning Rate
  • Combustion
  • Combustion Chambers
  • Combustion Products
  • Differential Equations
  • Energy
  • Equations Of State
  • Heat Transfer
  • Jet Propulsion
  • Liquid Propellants
  • Mach Number
  • Measurement
  • Physics Laboratories
  • Plastic Explosives
  • Rocket Engines
  • Steady State

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Dynamics.
  • Rocket Propulsion.