Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/5283
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | - |
dc.creator | Zhang, MM | - |
dc.creator | Cheng, L | - |
dc.creator | Zhou, Y | - |
dc.date.accessioned | 2014-12-11T08:29:01Z | - |
dc.date.available | 2014-12-11T08:29:01Z | - |
dc.identifier.issn | 1070-6631 (print) | - |
dc.identifier.issn | 1089-7666 (online) | - |
dc.identifier.uri | http://hdl.handle.net/10397/5283 | - |
dc.language.iso | en | en_US |
dc.publisher | American Institute of Physics | en_US |
dc.rights | © 2004 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in M. M. Zhang, L. Cheng & Y. Zhou, Physics of Fluids 16, 1439 (2004) and may be found at http://link.aip.org/link/?phf/16/1439 | en_US |
dc.subject | Flow control | en_US |
dc.subject | Vortices | en_US |
dc.subject | Three-term control | en_US |
dc.subject | Feedback | en_US |
dc.subject | Drag reduction | en_US |
dc.subject | Flow visualisation | en_US |
dc.subject | Closed loop systems | en_US |
dc.title | Closed-loop-controlled vortex shedding and vibration of a flexibly supported square cylinder under different schemes | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.description.otherinformation | Author name used in this publication: Y. Zhou | en_US |
dc.identifier.spage | 1439 | - |
dc.identifier.epage | 1448 | - |
dc.identifier.volume | 16 | - |
dc.identifier.issue | 5 | - |
dc.identifier.doi | 10.1063/1.1687413 | - |
dcterms.abstract | Different schemes were experimentally investigated of the closed-loop control of vortex shedding from a spring-supported square cylinder in cross flow. The control action was implemented through the perturbation of one cylinder surface, which was generated by three piezoelectric ceramic actuators, embedded underneath the surface and controlled by a proportional-integral-derivative controller. Three control schemes were investigated using different feedback signals, including the turbulent flow signal measured by a hot wire, flow-induced structural oscillation signal obtained by a laser vibrometer, and a combination of both signals. An investigation was conducted at the resonance condition, when the vortex-shedding frequency coincided with the natural frequency of the fluid-structure system. The flow and structural vibration were measured using particle image velocimetry, laser-induced fluorescence flow visualization, a laser Doppler anemometer, and a laser vibrometer. It was observed that the control scheme based on the feedback of both flow and structural oscillation led to the almost complete destruction of the Kármán vortex street and a reduction in the structural vibration, vortex shedding strength, and drag coefficient by 82%, 65%, and 35%, respectively, outperforming by far an open-loop control as well as the other two closed-loop schemes. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Physics of fluids, May 2004, v. 16, no. 5, p. 1439-1448 | - |
dcterms.isPartOf | Physics of fluids | - |
dcterms.issued | 2004-05 | - |
dc.identifier.isi | WOS:000220832600026 | - |
dc.identifier.scopus | 2-s2.0-2442720037 | - |
dc.identifier.rosgroupid | r16630 | - |
dc.description.ros | 2003-2004 > Academic research: refereed > Publication in refereed journal | - |
dc.description.oa | Version of Record | en_US |
dc.identifier.FolderNumber | OA_IR/PIRA | en_US |
dc.description.pubStatus | Published | en_US |
dc.description.oaCategory | VoR allowed | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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Zhang_Vortex_Shedding_Square.pdf | 861.86 kB | Adobe PDF | View/Open |
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