volume 160, issue 3, P589-600 2013
DOI: 10.1016/j.combustflame.2012.11.001
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Abstract: a b s t r a c tIntroducing a new measurand, namely the rate of change of density in line-of-sight, can be of great interest for people working on thermoacoustics and combustion noise. In this work the relationship between the radiated acoustic pressure, the time rate of change of unsteady heat release and of density fluctuations in a laminar pulsated premixed flame is presented. The burner produced a 'M'-shaped flame which is excited by harmonic modulations of the flow at two forcing frequencies f = 51 and 10…

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