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Hydrodynamic responses of a thin floating disk to regular waves

Yiew, LJ; Bennetts, LG; Meylan, MH; French, BJ; Thomas, GA; (2016) Hydrodynamic responses of a thin floating disk to regular waves. Ocean Modelling , 97 pp. 52-64. 10.1016/j.ocemod.2015.11.008. Green open access

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Abstract

The surge, heave and pitch motions of two solitary, thin, floating disks, extracted from laboratory wave basin experiments are presented. The motions are forced by regular incident waves, for a range of wave amplitudes and frequencies. One disk has a barrier attached to its edge to stop the incident waves from washing across its upper surface. It is shown that the motions of the disk without the barrier are smaller than those of the disk with the barrier. Moreover, it is shown that the amplitudes of the motions, relative to the incident amplitude, decrease with increasing incident wave amplitude for the disk without a barrier and for short incident wavelengths. Two theoretical models of the disk motions are considered. One is based on slope-sliding theory and the other on combined linear potential-flow and thin-plate theories. The models are shown to have almost the same form in the long-wavelength regime. The potential-flow/thin-plate model is shown to capture the experimentally measured disk motions with reasonable accuracy.

Type: Article
Title: Hydrodynamic responses of a thin floating disk to regular waves
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.ocemod.2015.11.008
Publisher version: http://dx.doi.org/10.1016/j.ocemod.2015.11.008
Language: English
Additional information: © 2015 Elsevier Ltd. This manuscript is made available under a Creative Commons Attribution Non-commercial Non-derivative 4.0 International license (CC BY-NC-ND 4.0). This license allows you to share, copy, distribute and transmit the work for personal and non-commercial use providing author and publisher attribution is clearly stated. Further details about CC BY licenses are available at http://creativecommons.org/ licenses/by/4.0. Access may be initially restricted by the publisher.
Keywords: Ocean waves, Sea ice, Marine geophysics
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/1474548
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