dc.contributor.author | Blanchard, Antoine | |
dc.contributor.author | Bergman, Lawrence A | |
dc.contributor.author | Vakakis, Alexander F | |
dc.date.accessioned | 2021-09-20T17:30:15Z | |
dc.date.available | 2021-09-20T17:30:15Z | |
dc.date.issued | 2019-01-25 | |
dc.identifier.uri | https://hdl.handle.net/1721.1/131785 | |
dc.description.abstract | Abstract
We computationally investigate flow past a three-dimensional linearly sprung cylinder undergoing vortex-induced vibration (VIV) transverse to the free stream and equipped with an internal dissipative rotational nonlinear energy sink (NES). The rotational NES consists of a line mass allowed to rotate at constant radius about the cylinder axis, with linearly damped rotational motion. We consider a value of the Reynolds number ($$\textit{Re}=10{,}000$$Re=10,000, based on the cylinder diameter and free-stream velocity) at which flow past a linearly sprung cylinder with no NES is three-dimensional and fully turbulent. For this $$\textit{Re}$$Re value, we show that the rotational NES is capable of passively harnessing a substantial amount of kinetic energy from the rectilinear motion of the cylinder, leading to a significant suppression of cylinder oscillation and a nearly twofold reduction in drag. The results presented herein are of practical significance since they demonstrate a novel passive mechanism for VIV suppression and drag reduction in a high-$$\textit{Re}$$Re bluff body flow, and lay down the groundwork for designing nonlinear energy sinks with a view to enhancing the performance of VIV-induced power generation in marine currents. | en_US |
dc.publisher | Springer Netherlands | en_US |
dc.relation.isversionof | https://doi.org/10.1007/s11071-019-04775-3 | en_US |
dc.rights | 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. | en_US |
dc.source | Springer Netherlands | en_US |
dc.title | Vortex-induced vibration of a linearly sprung cylinder with an internal rotational nonlinear energy sink in turbulent flow | en_US |
dc.type | Article | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Mechanical Engineering | |
dc.eprint.version | Author's final manuscript | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dc.date.updated | 2020-09-24T20:38:58Z | |
dc.language.rfc3066 | en | |
dc.rights.holder | Springer Nature B.V. | |
dspace.embargo.terms | Y | |
dspace.date.submission | 2020-09-24T20:38:58Z | |
mit.license | PUBLISHER_POLICY | |
mit.metadata.status | Authority Work and Publication Information Needed | |