THE FEATURES OF HYDROGEN COMBUSTION IN ROUND AND PLANE MICROJET IN THE TRANSVERSE ACOUSTIC FIELD, AND COMPARISON WITH THE RESULTS PROPANE COMBUSTION

Read more Experimental studies of the hydrogen combustion in the round and plane microjet in cross acoustic field at low Reynolds numbers are presented. The results are compared with the results obtained during the combustion of propane, studied earlier in the same experimental conditions. It is shown that the lifted flame of propane at diffusion combustion in a round microjet, under the influence of a transverse acoustic field, subject to bifurcation. This phenomenon is associated with the development of a sinusoidal oscillation process occurring under the influence of a transverse acoustic field. For the case of hydrogen combustion of plane microjet to lift the flame also failed, but the bifurcation effect is manifested at velocity close to 450 m/s. In this case acoustic disturbances generated by the jet, and a sinusoidal instability is typical for the plane jets.

Keywords:
round microjet, plane microjet, hydrogen combustion, propane combustion, acoustic. 
УДК 544.452.42

THE FEATURES OF HYDROGEN COMBUSTION IN ROUND AND PLANE MICROJET IN THE TRANSVERSE ACOUSTIC FIELD, AND COMPARISON WITH THE RESULTS PROPANE COMBUSTION