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Vortex shedding lock-on in a periodic freestream flow past a circular cylinder

dc.contributor.authorOlinger, D. J.en
dc.contributor.authorAlexandrou, Andreas N.en
dc.contributor.authorDutka, J.en
dc.coverage.spatialNew York, NY, United Statesen
dc.creatorOlinger, D. J.en
dc.creatorAlexandrou, Andreas N.en
dc.creatorDutka, J.en
dc.date.accessioned2019-05-06T12:24:14Z
dc.date.available2019-05-06T12:24:14Z
dc.date.issued1993
dc.identifier.isbn0-7918-0965-X
dc.identifier.urihttp://gnosis.library.ucy.ac.cy/handle/7/48663
dc.description.abstractVortex lock-on phenomena in flow past a circular cylinder with a periodic component superimposed on the mean free stream flow is investigated using concepts from dynamical systems (chaos) theory. Numerical results show that in addition to classical lock-on phenomenon (where the wake and forcing frequencies coincide or lock-on in a subharmonic multiple) regions are observed in which the wake frequency locks-on to a fractional ratio of the freestream oscillation frequency. The observed phenomena are compared to qualitative predictions of circle map theory. A possible general framework for understanding lock-on phenomena using circle map theory is discussed.en
dc.language.isoengen
dc.publisherPubl by ASMEen
dc.sourceAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDen
dc.subjectMathematical modelsen
dc.subjectVortex flowen
dc.subjectVortex sheddingen
dc.subjectCylinders (shapes)en
dc.subjectWakesen
dc.subjectCircular cylindersen
dc.subjectHarmonic analysisen
dc.subjectChaos theoryen
dc.subjectCircle map theoryen
dc.subjectDynamical systems theoryen
dc.subjectLock on phenomenaen
dc.subjectOscillationsen
dc.subjectPeriodic freestream flowen
dc.subjectWake frequencyen
dc.titleVortex shedding lock-on in a periodic freestream flow past a circular cylinderen
dc.typeinfo:eu-repo/semantics/conferenceObject
dc.description.volume157
dc.description.startingpage183
dc.description.endingpage188
dc.author.facultyΠολυτεχνική Σχολή / Faculty of Engineering
dc.author.departmentΤμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering
dc.type.uhtypeConference Objecten
dc.description.totalnumpages183-188


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