volume 156, issue 9, P1683-1697 2009
DOI: 10.1016/j.combustflame.2009.05.011
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Peter A. Hield, Michael J. Brear, Seong Ho Jin

Abstract: This paper presents an experimental and theoretical investigation of the response of a turbulent premixed\ud flame during thermoacoustic limit cycle in a simple, laboratory combustor. The flame dynamics are examined using high-speed pressure transducers and CH* chemiluminescence. The so-called ‘interaction index’ and time delay between the acoustic velocity fluctuations at the flame holder and the flame’s overall heat release fluctuations are then determined. A wide range of operating conditions, traversing\ud…

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