Experimental sensitivity analysis of a linearly stable thermoacoustic system via a pulsed forcing technique

Nicholas Jamieson & Matthew Juniper
In this paper we present the results of an experimental sensitivity analysis on a vertical electrically-heated Rijke tube. We examine the shift in linear decay rates and frequencies of thermoacoustic oscillations, with and without control devices. To measure the decay rate we wait for the system to reach a steady state and then excite it with an acoustic pulse from a loudspeaker. We identify the range of amplitudes over which the amplitude decays exponentially with...
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