Low-order modeling of the mutual synchronization between two turbulent thermoacoustic oscillators

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We use a low-order oscillator model to investigate the mutual synchronization of a thermoacoustic system consisting of two turbulent lean-premixed combustors coupled via a cross-talk tube. The model consists of two Van der Pol (VDP) oscillators coupled via dissipative and time-delay terms. We show that, despite its simplicity, the model can reproduce many of the synchronization phenomena observed experimentally, such as amplitude death, desynchronization (quasiperiodicity), synchronization (phase locking), and nonlinear energy pumping from a limit-cycle mode to a damped mode. This study shows that the mutual synchronization dynamics of a turbulent thermoacoustic system can be reproduced with just a simple coupled VDP model. This suggests that such a model could be used to identify new strategies for quenching limit-cycle oscillations in turbulent thermoacoustic systems, such as gas turbines and rocket engines.
Publisher
AMER PHYSICAL SOC
Issue Date
2021-08
Language
English
Article Type
Article
Citation

PHYSICAL REVIEW E, v.104, no.2, pp.024216

ISSN
2470-0053
DOI
10.1103/PhysRevE.104.024216
URI
http://hdl.handle.net/10203/287623
Appears in Collection
AE-Journal Papers(저널논문)
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