2018
DOI: 10.1115/1.4041027
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Abstract: Sequential combustion constitutes a major technological step-change for gas turbines applications. This design provides higher operational flexibility, lower emissions, and higher efficiency compared to today's conventional architectures. Like any constant pressure combustion system, sequential combustors can undergo thermoacoustic instabilities. These instabilities potentially lead to high-amplitude acoustic limit cycles, which shorten the engine components' lifetime, and therefore, reduce their reliability a… Show more

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Cited by 13 publications
(4 citation statements)
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“…All the participating modes oscillate at the same frequency and feature fixed phase relations. This is, hence, an occurrence of synchronisation, which has previously been observed in other scenarios and contexts in thermoacoustic systems (Bonciolini & Noiray 2019;Moeck et al 2019;Moon et al 2020a;Chen et al 2021;Guan et al 2021). In the present case, synchronisation takes place between thermoacoustic system modes and is, consequently, purely nonlinear.…”
Section: Discussionsupporting
confidence: 70%
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“…All the participating modes oscillate at the same frequency and feature fixed phase relations. This is, hence, an occurrence of synchronisation, which has previously been observed in other scenarios and contexts in thermoacoustic systems (Bonciolini & Noiray 2019;Moeck et al 2019;Moon et al 2020a;Chen et al 2021;Guan et al 2021). In the present case, synchronisation takes place between thermoacoustic system modes and is, consequently, purely nonlinear.…”
Section: Discussionsupporting
confidence: 70%
“…All the participating modes oscillate at the same frequency and feature fixed phase relations. This is, hence, an occurrence of synchronisation, which has previously been observed in other scenarios and contexts in thermoacoustic systems (Bonciolini & Noiray 2019; Moeck et al. 2019; Moon et al.…”
Section: Discussionsupporting
confidence: 65%
See 1 more Smart Citation
“…Crucially, these synchronization phenomena observed in experiments have been reproduced phenomenologically with low-order oscillator models. Such models are less computationally demanding than high-fidelity numerical simulations and can be deployed flexibly as surrogate models to understand and predict complex physical processes (Jaensch et al 2017;Bonciolini & Noiray 2019). This approach sets the stage for the development of quantitatively accurate models by leveraging the qualitative insights gained from low-order phenomenological modelling.…”
Section: Forced Synchronization Of Chaosmentioning
confidence: 99%