Accession Number : ADA193014

Title :   Heterogeneous Diffusion Flame Stabilization.

Descriptive Note : Final rept. Oct 83-Sep 87,

Corporate Author : GEORGIA INST OF TECH ATLANTA SCHOOL OF AEROSPACE ENGINEERING

Personal Author(s) : Strahle, Warren C ; Jagoda, Jechiel I

PDF Url : ADA193014

Report Date : 29 Nov 1987

Pagination or Media Count : 12

Abstract : Analytical modelling and several experimental diagnostics were applied to an experimental flow in a two-dimensional subsonic windtunnel with a backward facing step and provision for injection of inerts and combustibles through the porous floor behind the step. The analytical techniques were based on a two equation model of turbulence with several variants of near wall models and numerical approaches. Conventional experimental techniques, where applicable in the cold flow, included hot film and pitot anemometry. Laser - based diagnostics in the cold and hot flows for velocity and species concentration measurements (both mean and instantaneous) included laser velocimetry in two components and Rayleigh molecular scattering.

Descriptors :   *TURBULENT FLOW, ANEMOMETERS, COLD FLOW, DIAGNOSIS(GENERAL), DIFFUSION, EQUATIONS, EXPERIMENTAL DESIGN, FILMS, FLAMES, FLAMMABILITY, FLOORS, HETEROGENEITY, HIGH TEMPERATURE, LASER VELOCIMETERS, LASERS, MATHEMATICAL MODELS, METHODOLOGY, WIND TUNNEL MODELS, MOLECULES, NUMERICAL METHODS AND PROCEDURES, PITOT TUBES, POROUS MATERIALS, RAYLEIGH SCATTERING, STABILIZATION, TURBULENCE, VARIATIONS, WALLS, SHEAR STRESSES, REACTION KINETICS, FUEL INJECTION, TWO DIMENSIONAL FLOW, FLOW FIELDS, RAMJET ENGINES, SOLID FUELS, SIMULATION

Subject Categories : Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE