Accession Number : AD0700759

Title :   STUDIES OF HYDROGEN-AIR SUPERSONIC COMBUSTION AT LOW DENSITIES,

Corporate Author : AEROSPACE RESEARCH LABS WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Drewry,James E. ; Dunn,Robert G. ; Edelman,Raymond ; Fortune,Owen

Report Date : 29 OCT 1968

Pagination or Media Count : 35

Abstract : An investigation of supersonic combustion as related to propulsive systems for high Mach number, high altitude flight is described. A method of laboratory simulation is employed which is considered to be suitable for fundamental studies of diffusional-controlled supersonic combustion under conditions approaching those of actual flight. A numerical analysis of the mixing and chemical reaction processes in a hydrogen-air ducted flow system was carried out, using a computer code based upon boundary layer concepts and including the effects of finite-rate chemistry. Results of the numerical calculations have indicated the inlet conditions at which auto-ignition is expected to occur within a reasonable combustor length. Based on the numerical data obtained, a constant area-divergent area combustion chamber was designed and fabricated for the performance of experimental tests under conditions closely matching those of the numerical study. (Author)

Descriptors :   (*SUPERSONIC COMBUSTION, HYDROGEN), (*SUPERSONIC COMBUSTION RAMJET ENGINES, HYPERSONIC FLIGHT), COMBUSTION CHAMBERS, HIGH ALTITUDE, SIMULATION, NUMERICAL ANALYSIS, CHEMICAL REACTIONS, INJECTION

Subject Categories : Combustion and Ignition
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE