Accession Number : ADA269138

Title :   Studies on High Pressure and Unsteady Flame Phenomena. Revision.

Descriptive Note : Annual rept. 15 Apr 92-14 Apr 93,

Corporate Author : PRINCETON UNIV NJ DEPT OF MECHANICAL AND AEROSPACE ENGINEERING

Personal Author(s) : Law, C. K.

Report Date : 04 JUN 1993

Pagination or Media Count : 139

Abstract : The objective of the present program is to study the structure and response of steady and unsteady laminar premixed and nonpremixed flames in reduced and elevated pressure environments through (a) non-intrusive experimentation, (b) computational simulation using detailed flame and kinetic codes, and (c) asymptotic analysis with reduced kinetic mechanisms. During the reporting period progress has been made in the following projects: (1) a theoretical and experimental study of unsteady diffusion flames; (2) a computational and experimental study of methane/air flames at elevated pressures; (3) an asymptotic analysis of the structure of methane/air premixed flames with reduced chemistry; (4) an asymptotic analysis of the extinction of laminar premixed flames with volumetric heat loss and chain mechanisms; and (5) asymptotic analyses of ignition in the supersonic laminar flat-plate boundary layer and mixing layer. A total of five reprints are appended. Flames, High-pressure combustion, Unsteady combustion, Reduced mechanisms, Methane-air flames, Extinction, Supersonic combustion.

Descriptors :   *FLAMES, *HIGH PRESSURE, *COMPUTATIONS, AIR, BOUNDARY LAYER, CHAINS, CHEMISTRY, COMBUSTION, DIFFUSION, ENVIRONMENTS, EXTINCTION, HEAT LOSS, IGNITION, KINETICS, LAYERS, METHANE, MIXING, PLATES, PRESSURE, REPRINTS, RESPONSE, SIMULATION, STRUCTURES, SUPERSONIC COMBUSTION, LAMINAR FLOW, ASYMPTOTIC SERIES, MATHEMATICS.

Subject Categories : Combustion and Ignition
      Fluid Mechanics
      Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE