dc.contributor.author | Olinger, D. J. | en |
dc.contributor.author | Alexandrou, Andreas N. | en |
dc.contributor.author | Dutka, J. | en |
dc.coverage.spatial | New York, NY, United States | en |
dc.creator | Olinger, D. J. | en |
dc.creator | Alexandrou, Andreas N. | en |
dc.creator | Dutka, J. | en |
dc.date.accessioned | 2019-05-06T12:24:14Z | |
dc.date.available | 2019-05-06T12:24:14Z | |
dc.date.issued | 1993 | |
dc.identifier.isbn | 0-7918-0965-X | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/48663 | |
dc.description.abstract | Vortex 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.iso | eng | en |
dc.publisher | Publ by ASME | en |
dc.source | American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED | en |
dc.subject | Mathematical models | en |
dc.subject | Vortex flow | en |
dc.subject | Vortex shedding | en |
dc.subject | Cylinders (shapes) | en |
dc.subject | Wakes | en |
dc.subject | Circular cylinders | en |
dc.subject | Harmonic analysis | en |
dc.subject | Chaos theory | en |
dc.subject | Circle map theory | en |
dc.subject | Dynamical systems theory | en |
dc.subject | Lock on phenomena | en |
dc.subject | Oscillations | en |
dc.subject | Periodic freestream flow | en |
dc.subject | Wake frequency | en |
dc.title | Vortex shedding lock-on in a periodic freestream flow past a circular cylinder | en |
dc.type | info:eu-repo/semantics/conferenceObject | |
dc.description.volume | 157 | |
dc.description.startingpage | 183 | |
dc.description.endingpage | 188 | |
dc.author.faculty | Πολυτεχνική Σχολή / Faculty of Engineering | |
dc.author.department | Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering | |
dc.type.uhtype | Conference Object | en |
dc.description.totalnumpages | 183-188 | |