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Flow structure of a lifted premixed flame investigated by PIV

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.2000
pages 1959-1962

S.V. Abdurakipov
S.S. Kutateladze Institute of Thermophysics, Siberian Branch of RAS 1 Ak. Lavrentyev Avenue, 630090, Novosibirsk, Novosibirsk State University, 2 Pirogova Street, 630090, Novosibirsk

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

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

T.A. Vinokurova
S.S. Kutateladze Institute of Thermophysics, Siberian Branch of RAS 1 Ak. Lavrentyev Avenue, 630090, Novosibirsk, Novosibirsk State University, 2 Pirogova Street, 630090, Novosibirsk

Resumo

The present paper reports results of high-repetition PIV measurements of flow in a rich propane-air lifted flame. The flow characteristics were compared to these for non-reacting flow, and it was observed that the presence of combustion significantly affected development of the flow disturbances in the shear layer upstream. Intensity of the velocity fluctuations and their characteristic frequency were significantly greater in comparison to the non-reacting case. Additionally, a periodic forcing of bulk velocity at fundamental frequency was applied for the reacting flow in order to emphasize role of large-scale vortices in stabilization of the flame.

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