6. Physics of a Fluid, Neutral and Ionized Gases

MODIFICATION OF SWIRLING JET FLOW BY PREMIXED COMBUSTION

Vladimir M. Dulin
1. Institute of Thermophysics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
vmd@itp.nsc.ru
Leonid M. Chikishev
1. Institute of Thermophysics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
Dmitriy M. Markovich
1. Kutateladze Institute of Thermophysics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
dmark@itp.nsc.ru
The material was received by the Editorial Board: 18.09.2012
Effect of combustion of propane-air mixture in a weakly and strongly swirling jet was studied. The rate of swirl was classified in terms of the absence / presence of a stable recirculation zone in the non-reacting jet flow. Sequences of the instantaneous velocity fields were measured in lean and rich flames at atmospheric pressure, and also in the non-reacting flow, by using a high-repetition stereoscopic particle image velocimetry system. Spatial distributions of the time-averaged velocity and Reynolds stresses, calculated from the sequences, revealed that combustion of rich mixture dramatically affected structure of flow and type of vortex breakdown.

Keywords:
swirling jet, swirling flame, vortex breakdown, large scale vortices, particle image velocimetry. 
УДК 532.517.4, 532.525.2, 532.556.2, 532.574.7, 533.6.08

MODIFICATION OF SWIRLING JET FLOW BY PREMIXED COMBUSTION
References: Dulin V. M., Chikishev L. M., Markovich D. M., Hanjalic K. MODIFICATION OF SWIRLING JET FLOW BY PREMIXED COMBUSTION. Vestnik NSU. Series: Physics. 2012, vol. 7, no. 4. P. 68–78 (in Russ.). DOI: 10.54362/1818-7919-2012-7-4-68-78