Hydroelastic interaction between water waves and an array of circular floating porous elastic plates

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dc.contributor.author Zheng, Siming
dc.contributor.author Meylan, Michael H.
dc.contributor.author Zhu, Guixun
dc.contributor.author Greaves, Deborah
dc.contributor.author Iglesias, Gregorio
dc.date.accessioned 2020-08-07T15:05:46Z
dc.date.available 2020-08-07T15:05:46Z
dc.date.issued 2020-08-06
dc.identifier.citation Zheng, S., Meylan, M. H., Zhu, G., Greaves, D. and Iglesias, G. (2020) 'Hydroelastic interaction between water waves and an array of circular floating porous elastic plates', Journal of Fluid Mechanics, doi: 10.1017/jfm.2020.508 en
dc.identifier.startpage 1 en
dc.identifier.endpage 26 en
dc.identifier.issn 0022-112
dc.identifier.uri http://hdl.handle.net/10468/10370
dc.identifier.doi 10.1017/jfm.2020.508 en
dc.description.abstract A theoretical model based on linear potential flow theory and an eigenfunction matching method is developed to analyse the hydroelastic interaction between water waves and multiple circular floating porous elastic plates. The water domain is divided into the interior and exterior regions, representing the domain beneath each plate and the rest, which extends towards infinity horizontally, respectively. Spatial potentials in these two regions can be expressed as a series expansion of eigenfunctions. Three different types of edge conditions are considered. The unknown coefficients in the potential expressions can be determined by satisfying the continuity conditions for pressure and velocity at the interface of the two regions, together with the requirements for the motion/force at the edge of the plates. Apart from the straightforward method to evaluate the exact power dissipated by the array of porous elastic plates, an indirect method based on Green's theorem is determined. The indirect method expresses the wave-power dissipation in terms of Kochin functions. It is found that wave-power dissipation of an array of circular porous elastic plates can be enhanced by the constructive hydrodynamic interaction between the plates, and there is a profound potential of porous elastic plates for wave-power extraction. The results can be applied to a range of floating structures but have special application in modelling energy loss in flexible ice floes and wave-power extraction by flexible plate wave-energy converters. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Cambridge University Press en
dc.rights © The Authors, 2020. Published by Cambridge University Press. This article has been published in a revised form in Journal of Fluid Mechanics, http://dx.doi.org/10.1017/jfm.2020.508 This version is free to view and download for private research and study only. Not for re-distribution, re-sale or use in derivative works. en
dc.subject Wave-structure interactions en
dc.subject Surface gravity waves en
dc.subject Wave scattering en
dc.title Hydroelastic interaction between water waves and an array of circular floating porous elastic plates en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Jose Gregorio Iglesias Rodriguez, School Of Enginering Office, University College Cork, Cork, Ireland. +353-21-490-3000 Email: gregorio.iglesias@ucc.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 6 months after publication by request of the publisher. en
dc.check.date 2021-02-06
dc.date.updated 2020-07-30T14:37:32Z
dc.description.version Accepted Version en
dc.internal.rssid 528344913
dc.description.status Peer reviewed en
dc.identifier.journaltitle Journal of Fluid Mechanics en
dc.internal.copyrightchecked Yes
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress gregorio.iglesias@ucc.ie en
dc.internal.bibliocheck In press. Add volume, pages, update citation. en

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