IMECH-IR  > 流固耦合系统力学重点实验室
Vortex-induced vibrations of a circular cylinder with different geometric disturbances
Lin LM(林黎明); Zhong XF(钟兴福); Wu YX(吴应湘)
Source PublicationProceedings of the 22nd (2012) International Offshore and Polar Engineering Conference
2012
Pages623-629
Conference Name22nd International Offshore and Polar Engineering Conference, ISOPE-2012
Conference DateJUN 17-22, 2012
Conference PlaceRhodes, Greece
AbstractBased on previous works, experiments are carried out for effects of harmonic and cone-like disturbances on vortex-induced vibrations (VIV). The structures are designed as the pendulum oscillated transversely in water channel. Three waviness, the ratio of wavy height to the wavelength, of 0.025, 0.05 and 0.1 are presented with the non-dimensional prescribed wavelength of 6. With the increasing incoming velocity, the oscillating amplitude of the wavy cylinder is firstly decreased at the start of synchronization with the comparison to that of the straight cylinder, and then increased greatly at higher velocities. Meantime, the response region of the wavy cylinder is also enlarged with the comparison to that of the straight cylinder. Other characteristics of responses of amplitude and frequency at different incoming velocities are presented.
KeywordVortex-induced Vibration Circular Cylinder Geometric Disturbance Riser Experiment
DepartmentLMFS多相流及流固耦合(LHO)
Funding OrganizationInternational Society of Offshore and Polar Engineers (ISOPE); ExxonMobil; Office of Naval Research Global; ARCHIRODON S.A.; Aristotle University of Thessaloniki - School of Engineering
ISBN978-1-880653-94-4
URL查看原文
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48295
Collection流固耦合系统力学重点实验室
Corresponding AuthorLin LM(林黎明)
Recommended Citation
GB/T 7714
Lin LM,Zhong XF,Wu YX. Vortex-induced vibrations of a circular cylinder with different geometric disturbances[C]:INTERNATIONAL SOCIETY OF OFFSHORE AND POLAR ENGINEERS,2012:623-629.
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