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THMT-12. Proceedings of the Seventh International Symposium On Turbulence Heat and Mass Transfer
September, 24-27, 2012, Palermo, Italy

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal


ISBN Print: 978-1-56700-302-4

ISSN: 2377-2816

Flow structure of a lifted premixed flame investigated by PIV

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

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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