dc.contributor.author | Deng, Shi | |
dc.contributor.author | Ren, Haojie | |
dc.contributor.author | Xui, Yuwang | |
dc.contributor.author | Fu, Shixiao | |
dc.contributor.author | Moan, Torgeir | |
dc.date.accessioned | 2021-03-18T09:56:40Z | |
dc.date.available | 2021-03-18T09:56:40Z | |
dc.date.created | 2020-08-12T13:24:46Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Journal of Fluids and Structures. 2020, 94 . | en_US |
dc.identifier.issn | 0889-9746 | |
dc.identifier.uri | https://hdl.handle.net/11250/2734116 | |
dc.description.abstract | The cross-flow vortex-induced vibration features of a submerged floating tunnel element, which is composed of two rigidly connected cylinders in a tandem configuration, were investigated via a self-oscillation model test in a steady flow. The Reynolds number ranged from 2104 to 9104, and the ratio of the center-to-center distance between the two cylinders and cylinder diameter varied within a range of 2-4. The vortex induced vibration responses and lift forces on the up- and downstream cylinders were studied under different spacing ratios and compared with those on a single cylinder. The results show that the spacing ratio plays an important role in VIV until the ratio reaches 4. For a small spacing ratio, a significant difference between the lift forces on the up- and downstream cylinders appears and induces a large torsional moment. For the convenience of engineering application, a torsional coefficient was proposed. The maximum torsional coefficient can reach 2.9, 1.2 and 0.98 for spacing ratios of 2, 3 and 4 at the reduced velocity of 5, respectively. Considering the vortex induced vibration responses as well as the torsional moment, a spacing ratio of 3 was recommended for tandem floating tunnel design. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.title | Experimental study of vortex-induced vibration of a twin-tube submerged floating tunnel segment model | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.pagenumber | 16 | en_US |
dc.source.volume | 94 | en_US |
dc.source.journal | Journal of Fluids and Structures | en_US |
dc.identifier.doi | 10.1016/j.jfluidstructs.2020.102908 | |
dc.identifier.cristin | 1822985 | |
dc.relation.project | Norges forskningsråd: 288851 | en_US |
dc.description.localcode | This article will not be available due to copyright restrictions © 2020 by Elsevier. | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |