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Large amplitude motions of a submerged circular cylinder in water with an ice cover

Wu, GX; (2017) Large amplitude motions of a submerged circular cylinder in water with an ice cover. European Journal of Mechanics - B/Fluids , 65 pp. 141-159. 10.1016/j.euromechflu.2017.02.004. Green open access

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Abstract

The hydrodynamic problem of a circular cylinder undergoing large amplitude oscillations in water covered by an ice sheet is investigated. The ice sheet is modelled by a thin elastic sheet and uniform physical properties are assumed. The fluid is assumed to be inviscid, incompressible and homogeneous, and the depth to be infinite. The boundary condition on the ice sheet is linearized and satisfied on its mean position, while the fully nonlinear boundary condition is imposed on the instantaneous position of the body surface. The velocity potential is formulated by the multipole expansion method in the polar coordinate system with its origin fixed at the centre of the cylinder. Detailed results through the hydrodynamic force and deformation of the ice sheet are provided. The effects of the ice sheet properties, and motion amplitude and frequency are investigated.

Type: Article
Title: Large amplitude motions of a submerged circular cylinder in water with an ice cover
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.euromechflu.2017.02.004
Publisher version: http://dx.doi.org/10.1016/j.euromechflu.2017.02.00...
Language: English
Additional information: © 2017 Elsevier Masson SAS. All rights reserved. This manuscript version 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 https://creativecommons.org/licenses/. Access may be initially restricted by the publisher.
Keywords: Ice sheet; Circular cylinder; Large amplitude oscillation; Multipole expansion
UCL classification: UCL
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/1542198
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