Bursting and mixed mode oscillations during the transition to limit cycle oscillations in a matrix burner.

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ID: 31931
2019
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Abstract
We investigate the route to self-excited thermoacoustic instability in a laminar flow multiple flame matrix burner. With an increase in the equivalence ratio, the thermoacoustic system that is initially quiet (stable operation) transitions to limit cycle oscillations through two distinct dynamical states, namely, bursting oscillations and mixed mode oscillations. The acoustic pressure oscillations transition from quiescence to large amplitudes during bursting oscillations. Such high amplitude bursting oscillations that occur well ahead of the onset of limit cycle oscillations can potentially cause structural damage. The thermoacoustic system exhibits hysteresis. The transition to limit cycle oscillations is replicated in a phenomenological model containing slow-fast time scales.
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kasthuri2019burstingchaos Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Kasthuri, Praveen;Unni, Vishnu R;Sujith, R I;
Journal chaos (woodbury, ny)
Year 2019
DOI
10.1063/1.5095401
URL
Keywords Keywords not found

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