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dc.contributor.authorXU, Liangliang
dc.contributor.authorZHENG, Jianyi
dc.contributor.authorWang, Guoqing
dc.contributor.authorLi, Lei
dc.contributor.authorQI, Fei
dc.date.accessioned2022-01-18T07:54:14Z
dc.date.available2022-01-18T07:54:14Z
dc.date.issued2021-10-22
dc.date.submitted2020-10-29
dc.identifier.citationXU, L., ZHENG, J., WANG, G., LI, L., & QI, F. (2022). Effects of swirler position on flame response and combustion instabilities. Chinese Journal of Aeronautics, 35(3), 345–355. doi:10.1016/j.cja.2021.07.036
dc.identifier.issn1000-9361
dc.identifier.doi10.1016/j.cja.2021.07.036
dc.identifier.urihttp://hdl.handle.net/10754/675013
dc.description.abstractThis study is concerned with the experimental and theoretical investigation of the combustion instabilities in a premixed swirl combustor. It is focused on the effects of the swirl mixing distance on the intrinsic thermoacoustic mode. The swirler as an origin of the swirling flow is also the source of the flow disturbance, which has effects on the flame response. The location of the swirler is varied in the experiment to study the effect on combustion instabilities and flame transfer functions. A low order model is built to analyze the thermoacoustic instabilities of the combustion system. The experimental results show that the ITA switches from an unstable state to a stable state as the swirl mixing distance changes with an increment of 15 mm; while the instability of the quarter-wave mode is not varied. The measured Flame Transfer Functions (FTFs) show that the gain curves of the frequency-dependent FTFs seem to be stretched or compressed with the modulation of the swirler position, which has effects on frequencies and instabilities of thermoacoustic modes. With the low order model, the effects of flame response on combustion instabilities are analyzed and the flame dominant nature of the ITA mode is confirmed.
dc.description.sponsorshipThis study was supported the National Natural Science Foundation of China (Nos. 51676126 and 51776191).
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S1000936121003277
dc.rightsThis is an open access article under the CC BY-NC-ND license.
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleEffects of swirler position on flame response and combustion instabilities
dc.typeArticle
dc.contributor.departmentClean Combustion Research Center
dc.identifier.journalChinese Journal of Aeronautics
dc.identifier.wosutWOS:000790555600003
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionSchool of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 210096, China
dc.identifier.volume35
dc.identifier.issue3
dc.identifier.pages345-355
kaust.personWang, Guoqing
dc.date.accepted2021-03-11
dc.identifier.eid2-s2.0-85122040489
refterms.dateFOA2022-01-18T07:55:31Z


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