Accession Number:

AD0450801

Title:

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,

Descriptive Note:

Corporate Author:

OFFICE OF AEROSPACE RESEARCH ARLINGTON VA

Personal Author(s):

• Wolfson, Bernard T.

Report Date:

1964-01-01

Pagination or Media Count:

69.0

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 andor thermal equilibrium in the Chapman-Jouguet plane was established, or to whether the frozen orequilibrium 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

Descriptors:

• *HYDROGEN
• *OXYGEN
• HELIUM
• ARGON
• CARBON DIOXIDE
• MIXTURES
• ADDITIVES
• DETONATIONS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE