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Flow structure of swirling turbulent propane flames

DOI: 10.1615/ICHMT.2009.TurbulHeatMassTransf.1770
12 pages

Sergey Alekseenko
Kutateladze Institute of Thermophysics SB RAS, Lavrentyev Ave. 1, 630090, Novosibirsk, Russia; Department of Physics, Novosibirsk State University

Vladimir M. Dulin
Kutateladze Institute of Thermophysics, 1, Lavrentyev Avenue, Novosibirsk, 630090, Russia; Department of Science and Research, Novosibirsk State University 2, Pirogova Street, 630090, Russia

Yuriy S. Kozorezov
S. S. Kutateladze Institute of Thermal Physics, Siberian Branch of the Russian Academy of Sciences, 1 Academician Lavrent'ev Ave., Novosibirsk, 630090, Russia

Dmitriy M. Markovich
Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences (IT SB RAS), 1, Lavrentyev Ave., Novosibirsk, 630090, Russia; Department of Physics, Novosibirsk State University (NSU), 1, Pirogov Str., Novosibirsk, 630090, Russia; Institute of Power Engineering, Tomsk Polytechnic University (TPU), 30, Lenin Ave., Tomsk, 634050, Russia

Sergei I. Shtork
S. S. Kutateladze Institute of Thermal Physics, Siberian Branch of the Russian Academy of Sciences, 1 Academician Lavrent'ev Ave., Novosibirsk, 630090, Russia

要約

The present work is devoted to the experimental study of the flow structure of premixed swirling jet flames at various combustion regimes. A stereo PIV technique combined with a pressure probe was used for the investigation of the role of large-scale vortices in turbulent structure of the flames and intensity of the emitted acoustics noise. Instantaneous velocity and vorticity fields were estimated, as well as the spatial distributions of the mean velocity and turbulent kinetic energy components. To determine a shape and location of the flame front, chemiluminescence images captured by an ICCD camera were used. Additionally, the efficiency of an external acoustic forcing as the tool to control the structure of swirling flames was investigated for different forcing frequencies.

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