Wake-body Resonance of Long Flexible Structures is Dominated by Counterclockwise Orbits
Author(s)
Modarres-Sadeghi, Yahya; Karniadakis, George E.; Bourguet, Remi; Triantafyllou, Michael S.
DownloadBourguer-2011-Letters-Wake-body Resonance of Long Flexible Structures.pdf (3.121Mb)
PUBLISHER_POLICY
Publisher Policy
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Terms of use
Metadata
Show full item recordAbstract
We identify a dominant mechanism in the interaction between a slender flexible structure undergoing free vibrations in sheared cross-flow and the vortices forming in its wake: energy is transferred from the fluid to the body under a resonance condition, defined as wake-body frequency synchronization close to a natural frequency of the structure; this condition occurs within a well-defined region of the span, which is dominated by counterclockwise, figure-eight orbits. Clockwise orbits are associated with damping fluid forces.
Date issued
2011-09Department
Massachusetts Institute of Technology. Department of Mechanical EngineeringJournal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Bourguet, Rémi et al. “Wake-body Resonance of Long Flexible Structures is Dominated by Counterclockwise Orbits.” Physical Review Letters 107.13 (2011): n. pag. Web. 27 Jan. 2012. © 2011 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114