Wake-body Resonance of Long Flexible Structures is Dominated by Counterclockwise Orbits
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...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society (APS)
2012
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| Online Access: | http://hdl.handle.net/1721.1/68688 https://orcid.org/0000-0002-4566-5693 https://orcid.org/0000-0002-4960-7060 |
| _version_ | 1826213736898101248 |
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| author | Modarres-Sadeghi, Yahya Karniadakis, George E. Bourguet, Remi Triantafyllou, Michael S. |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Modarres-Sadeghi, Yahya Karniadakis, George E. Bourguet, Remi Triantafyllou, Michael S. |
| author_sort | Modarres-Sadeghi, Yahya |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T15:54:00Z |
| format | Article |
| id | mit-1721.1/68688 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:54:00Z |
| publishDate | 2012 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/686882024-06-26T19:01:02Z Wake-body Resonance of Long Flexible Structures is Dominated by Counterclockwise Orbits Modarres-Sadeghi, Yahya Karniadakis, George E. Bourguet, Remi Triantafyllou, Michael S. Massachusetts Institute of Technology. Department of Mechanical Engineering Triantafyllou, Michael S. Bourguet, Remi Triantafyllou, Michael S. 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. 2012-01-27T19:59:31Z 2012-01-27T19:59:31Z 2011-09 2011-06 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/68688 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 https://orcid.org/0000-0002-4566-5693 https://orcid.org/0000-0002-4960-7060 en_US http://dx.doi.org/10.1103/PhysRevLett.107.134502 Physical Review Letters 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. application/pdf American Physical Society (APS) APS |
| spellingShingle | Modarres-Sadeghi, Yahya Karniadakis, George E. Bourguet, Remi Triantafyllou, Michael S. Wake-body Resonance of Long Flexible Structures is Dominated by Counterclockwise Orbits |
| title | Wake-body Resonance of Long Flexible Structures is Dominated by Counterclockwise Orbits |
| title_full | Wake-body Resonance of Long Flexible Structures is Dominated by Counterclockwise Orbits |
| title_fullStr | Wake-body Resonance of Long Flexible Structures is Dominated by Counterclockwise Orbits |
| title_full_unstemmed | Wake-body Resonance of Long Flexible Structures is Dominated by Counterclockwise Orbits |
| title_short | Wake-body Resonance of Long Flexible Structures is Dominated by Counterclockwise Orbits |
| title_sort | wake body resonance of long flexible structures is dominated by counterclockwise orbits |
| url | http://hdl.handle.net/1721.1/68688 https://orcid.org/0000-0002-4566-5693 https://orcid.org/0000-0002-4960-7060 |
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