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Article: Chaotic oscillations of forced convection in tightly coiled ducts

TitleChaotic oscillations of forced convection in tightly coiled ducts
Authors
Liu, FWang, L
Issue Date2007
PublisherTaylor & Francis Inc. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/10407782.asp
Citation
Numerical Heat Transfer; Part A: Applications, 2007, v. 51 n. 2, p. 179-194 How to Cite?
DOI: http://dx.doi.org/10.1080/00397910600762620
AbstractThe present work is on the stability of forced convection in a tightly coiled square duct of curvature ratio 0.5 in high Dean number region. Dynamic responses of multiple flows to finite random disturbances are examined by direct transient computation. It is found that physical realizable, fully developed flows evolve to chaotic oscillations at high values of Dean number. The power spectrum of these oscillating flows is constructed by empirical mode decomposition and Hilbert spectral analysis for the characteristics of chaotic oscillations. With increase of the Dean number, the temporal scale of chaotic oscillation becomes wider; high-frequency flows appear, and the energy contained in the bursts becomes stronger.
Persistent Identifierhttp://hdl.handle.net/10722/75706
ISSN
1040-7782
2023 Impact Factor: 2.8
2023 SCImago Journal Rankings: 0.440
ISI Accession Number ID
WOS:000242799800004
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorLiu, Fen_HK
dc.contributor.authorWang, Len_HK
dc.date.accessioned2010-09-06T07:13:46Z-
dc.date.available2010-09-06T07:13:46Z-
dc.date.issued2007en_HK
dc.identifier.citationNumerical Heat Transfer; Part A: Applications, 2007, v. 51 n. 2, p. 179-194en_HK
dc.identifier.issn1040-7782en_HK
dc.identifier.urihttp://hdl.handle.net/10722/75706-
dc.description.abstractThe present work is on the stability of forced convection in a tightly coiled square duct of curvature ratio 0.5 in high Dean number region. Dynamic responses of multiple flows to finite random disturbances are examined by direct transient computation. It is found that physical realizable, fully developed flows evolve to chaotic oscillations at high values of Dean number. The power spectrum of these oscillating flows is constructed by empirical mode decomposition and Hilbert spectral analysis for the characteristics of chaotic oscillations. With increase of the Dean number, the temporal scale of chaotic oscillation becomes wider; high-frequency flows appear, and the energy contained in the bursts becomes stronger.en_HK
dc.languageengen_HK
dc.publisherTaylor & Francis Inc. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/10407782.aspen_HK
dc.relation.ispartofNumerical Heat Transfer; Part A: Applicationsen_HK
dc.titleChaotic oscillations of forced convection in tightly coiled ductsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0029-599X&volume=51&spage=179&epage=194&date=2007&atitle=Chaotic+oscillations+of+forced+convection+in+tightly+coiled+ductsen_HK
dc.identifier.emailWang, L:lqwang@hkucc.hku.hken_HK
dc.identifier.authorityWang, L=rp00184en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1080/00397910600762620en_HK
dc.identifier.scopuseid_2-s2.0-33847153871en_HK
dc.identifier.hkuros152128en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33847153871&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume51en_HK
dc.identifier.issue2en_HK
dc.identifier.spage179en_HK
dc.identifier.epage194en_HK
dc.identifier.isiWOS:000242799800004-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLiu, F=17233795400en_HK
dc.identifier.scopusauthoridWang, L=35235288500en_HK
dc.identifier.citeulike998245-
dc.identifier.issnl1040-7782-

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