Accession Number : ADA136450

Title :   Ignition and Unsteady Flame Propagation in Turbulent Reactive Flows.

Descriptive Note : Final rept. 10 May 80-31 Oct 83,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Toong,T Y

PDF Url : ADA136450

Report Date : Dec 1983

Pagination or Media Count : 24

Abstract : A conceptual model was developed for the study of turbulent flame propagation comparison of measured apparent turbulent-flame-propagation speeds with limit curves derived on the basis of this model indicated the importance of rate augmentation within the turbulent flame structure. Spectral changes observed in the thermal structure of premixed methane-air V-flames stabilized behind a cylindrical flameholder indeed showed the existance of reaction-augmented turbulence in the smaller eddies, which would account for the increase in the propagation speeds. (Author)

Descriptors :   *Flame propagation, *Turbulent flow, *Ignition, *Combustion, Turbulence, Interactions, Velocity, Augmentation, Rates, Spectra, Thermal properties, Methane, Air, Flame holders, Combustion stability

Subject Categories : Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE