THE INFLUENCE OF INERT AND CHEMICALLY REACTIVE ADDITIVES ON THE MECHANISM OF DE/ONATION IN GASEOUS MIXTURES OVER WIDE RANGES OF INITIAL PRESSURE AND ADDITIVE CONCENTRATION,

Abstract

This study investigates the effect of He, Ar and CO2 additives on the mechanism ofdetonation in stoichiometric H-O mixtures ovej wide ranges of initial pressures and additive concentrations, and attempts to determine the validity of the Chapman-Jouguet thermohydrodynamic theory under these conditions. No quantitative conclusions can be made about whether complete chemical and/or thermal equilibrium in the Chapman-Jouguet plane was established, or to whether the ''frozen'' or''equilibrium'' prodtct gas sound speed is most correct in the real gas situation. Additives retarded the rate of attainment of stable detonation in stoichiometric H-O mixtures. The stabilization rate increased with increase in initial pressure and with decrease in additive concentration. The rates appeared to beclosely associated with the predetonation lengths, and the deviations between theoretical and experimental values of detonation parameters. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1964
Accession Number
AD0450801

Entities

People

  • Bernard T. Wolfson

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Chemical Reaction Properties
  • Detonations

Readers

  • Calculus or Mathematical Analysis
  • Combustion science or combustion engineering.