RADIATIVE EFFECTS ON ROCKET STABILITY WITH OZONE-CONTAINING OXIDIZERS.

Abstract

The stability of an ozone containing oxidizer in a rocket engine is analyzed. A blackbody radiation spectrum is used to examine the explosion and decomposition flame characteristics of the ozone system under an engine environment. Radiation, while not affecting appreciably the flame velocity, alters the flame structure and cuts down the induction period for explosion. The often-invoked assumption that the O atom concentration can be approximated by steady-state values for flame calculations is shown to hold for ozone-oxygen mixtures with 25% O3 or less. For pure ozone the assumption leads to serious errors. The coupled diffusion and heat conduction equations are examined analytically. The uniqueness condition of Kolmogorov for flame solutions is generalized for coupled heat release and species production functions. From both the results of numerical integration and analytical studies, steady-state decomposition flames for pure ozone or high ozone concentration mixtures are shown not to exist. The resultant non-steady state burning is most likely to contribute to instability in an engine where ozone-containing oxidizers are used. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1967
Accession Number
AD0824679

Entities

People

  • B. F. Gray
  • E. R. Buley
  • Henry Yang

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Blackbody Radiation
  • Decomposition
  • Diffusion
  • Electromagnetic Radiation
  • Engines
  • Environment
  • Equations
  • Explosions
  • Instability
  • Numerical Integration
  • Production
  • Radiation
  • Rocket Engines
  • Rockets
  • Steady State

Readers

  • Combustion science or combustion engineering.
  • Statistical inference.