DC Field | Value | Language |
---|---|---|
dc.contributor.author | Guan, Yu | ko |
dc.contributor.author | Li, Larry | ko |
dc.contributor.author | Jegal, Hyunwook | ko |
dc.contributor.author | Kim, Kyu Tae | ko |
dc.date.accessioned | 2023-06-14T03:00:11Z | - |
dc.date.available | 2023-06-14T03:00:11Z | - |
dc.date.created | 2022-11-13 | - |
dc.date.created | 2022-11-13 | - |
dc.date.created | 2022-11-13 | - |
dc.date.issued | 2023-06 | - |
dc.identifier.citation | PROCEEDINGS OF THE COMBUSTION INSTITUTE, v.39, no.4, pp.4731 - 4739 | - |
dc.identifier.issn | 1540-7489 | - |
dc.identifier.uri | http://hdl.handle.net/10203/307255 | - |
dc.description.abstract | We experimentally study the effect of rotational asymmetries in the flame response distribution on the thermoacoustic oscillations of four turbulent lean-premixed combustors coupled in a ring network. The asymmetries are created via different combinations of high-swirl (HS) and low-swirl (LS) nozzles. By analyzing the inter-combustor acoustic interactions in terms of discrete thermoacoustic modes, we find a variety of modal patterns: (i) global alternating push–pull modes emerge for most pair-wise asymmetric nozzle combinations, (ii) 2-can push–pull modes emerge for an alternating 2-fold symmetric nozzle combination, and (iii) strong mode localization and global push–push modes emerge when the HS nozzles outnumber the LS nozzles. Using a complex systems framework, we reinterpret these modal patterns as collective states, such as a weak breathing chimera, a weak anti-phase chimera, and in-phase/anti-phase synchronization. This study shows that changing the flame response distribution of a multi-combustor system, via changes in the nozzle swirl distribution, can induce a variety of modal patterns and collective states. This sets the stage for the potential use of rotational asymmetries in the passive control of thermoacoustic modes in can-annular combustion systems. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE INC | - |
dc.title | Effect of flame response asymmetries on the modal patterns and collective states of a can-annular lean-premixed combustion system | - |
dc.type | Article | - |
dc.identifier.wosid | 001020833900001 | - |
dc.identifier.scopusid | 2-s2.0-85142809830 | - |
dc.type.rims | ART | - |
dc.citation.volume | 39 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 4731 | - |
dc.citation.endingpage | 4739 | - |
dc.citation.publicationname | PROCEEDINGS OF THE COMBUSTION INSTITUTE | - |
dc.identifier.doi | 10.1016/j.proci.2022.08.095 | - |
dc.contributor.localauthor | Kim, Kyu Tae | - |
dc.contributor.nonIdAuthor | Guan, Yu | - |
dc.contributor.nonIdAuthor | Li, Larry | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Can-annular | - |
dc.subject.keywordAuthor | Combustion instability | - |
dc.subject.keywordAuthor | Complex systems | - |
dc.subject.keywordAuthor | Gas turbines | - |
dc.subject.keywordAuthor | Thermoacoustics | - |
dc.subject.keywordPlus | CROSS-TALK | - |
dc.subject.keywordPlus | ACOUSTIC INTERACTIONS | - |
dc.subject.keywordPlus | SYNCHRONIZATION | - |
dc.subject.keywordPlus | INSTABILITIES | - |
dc.subject.keywordPlus | OSCILLATIONS | - |
dc.subject.keywordPlus | DYNAMICS | - |
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