Accession Number : AD0623859

Title :   ON THE EXTINCTION OF OPPOSED-JET DIFFUSION FLAMES: A PHYSICAL CRITERION FOR EXTINCTION,

Corporate Author : AEROJET-GENERAL CORP SACRAMENTO CALIF SOLID PROPELLANT RESEARCH OPERATIONS

Personal Author(s) : Chaiken,R. F.

Report Date : 1965

Pagination or Media Count : 32

Abstract : A physical criterion for the extinction of opposed-jet diffusion flames is presented. This criterion, when used in conjunction with the Spalding Theory of mixing in opposed-gas jets, enables the apparent flame strength to be related to (1) the effective maximum chemical reaction rate in the opposed-jet flame, and (2) the laminar flame speed of an equivalent pre-mixed diffusion flame. The derived relationships differ somewhat from similar relationships given by Spalding's earlier theoretical treatment of the phenomena in the thin-flame approximation, but do yield quantitatively similar results when compared with experimental data reported for opposed-jet diffusion flames involving oxidation of simple hydrocarbons and ammonia. (Author)

Descriptors :   (*JET FLAMES, QUENCHING(INHIBITION)), (*FLAMES, REACTION KINETICS), JET MIXING FLOW, THEORY, LAMINAR FLOW, VELOCITY, GAS FLOW, FUELS, OXIDIZERS, DIFFUSION, AERODYNAMIC CHARACTERISTICS, STAGNATION

Subject Categories : Physical Chemistry
      Fluid Mechanics
      Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE