Abstract:Development of gas turbine combustors operating on the lean premixed mode has been hindered by the establishment of thermoacoustic instabilities that may prove challenging to the structural integrity of the engine. Transitions between a quiescent state of thermoacoustic operation towards an oscillatory one occur via a Hopf bifurcation, namely via the emergence of periodic oscillations amidst broadband fluctuations. Hopf bifurcations can be distinguished between supercritical and subcritical, with the later typ… Show more
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