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ISSN Online: 2377-424X

ISBN Print: 0-85295-345-3

International Heat Transfer Conference 10
August, 14-18, 1994, Brighton, UK

EXPERIMENTAL INVESTIGATION OF THE MIXING PROCESS AND THE FLAME STABILIZATION IN SUB- AND SUPERSONIC HYDROGEN/AIR FLAMES

Get access (open in a dialog) DOI: 10.1615/IHTC10.4960
pages 63-68

Resumo

The development and structure of the mixing and combustion process in sub- and supersonic hydrogen/air flames was investigated by means of optical measurement techniques. The experiments showed, that the development of the mixing jet was very much controlled by the impact of macroscopic turbulence and could be described with analytical formulae. The use of a rearward facing step enabled the stabilization of the flame under all operation conditions of the combustion chamber up to supersonic speed. The structure and stabilization of high speed hydrogen/air flames could be explained by the enhancement of the burning rate due to turbulent flame front acceleration.