Wave radiation from multiple cylinders of arbitrary cross sections

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dc.contributor.author Zheng, Siming
dc.contributor.author Zhang, Yongliang
dc.contributor.author Liu, Yingyi
dc.contributor.author Iglesias, Gregorio
dc.date.accessioned 2019-06-07T10:04:24Z
dc.date.available 2019-06-07T10:04:24Z
dc.date.issued 2019-05-17
dc.identifier.citation Zheng, S., Zhang, Y., Liu, Y. and Iglesias, G. (2019) 'Wave radiation from multiple cylinders of arbitrary cross sections', Ocean Engineering, 184, pp. 11-22. doi: 10.1016/j.oceaneng.2019.05.018 en
dc.identifier.volume 184 en
dc.identifier.startpage 11 en
dc.identifier.endpage 22 en
dc.identifier.issn 0029-8018
dc.identifier.uri http://hdl.handle.net/10468/8033
dc.identifier.doi 10.1016/j.oceaneng.2019.05.018 en
dc.description.abstract A semi-analytic model based on linear potential theory is developed to solve wave radiation from an array of truncated cylinders with arbitrary cross sections, free to oscillate independently in water of finite depth. The radiated velocity potential in the interior region below each cylinder and the exterior region extending to infinity are expressed as a series of eigenfunctions in the local cylindrical coordinate system using the method of separation of variables. They are solved subsequently by imposing the continuity condition of the velocity and pressure at the wetted surfaces of the cylinders and the fluid interfaces between adjacent regions. In the process, the Fourier series expansion method is applied to the terms regarding the arbitrary cross sections. The model is successfully validated through a case study with two caissons â excellent agreement is obtained with a numerical model based on the boundary element method. The semi-analytic model is then applied to explore the influence of layout (angle and spacing between the two caissons) on the added-mass and radiation damping coefficients. It is found that the hydrodynamic interaction between the two caissons can increase or decrease the value of the coefficients depending on the wave frequency. en
dc.description.sponsorship China Postdoctoral Science Foundation (Grant No. 2016M601041; 2017T100085); National Natural Science Foundation of China (51679124; 51879144); European Commission (INTERREG V Intelligent Community Energy (ICE) Project No. 5025) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier Ltd. en
dc.relation.uri http://www.sciencedirect.com/science/article/pii/S0029801819302434
dc.rights © 2019, Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license. en
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/ en
dc.subject Wave radiation en
dc.subject Floating cylinder en
dc.subject Hydrodynamic coefficients en
dc.subject Added mass en
dc.subject Radiation damping en
dc.subject Potential flow en
dc.title Wave radiation from multiple cylinders of arbitrary cross sections en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Jose Gregorio Iglesias Rodriguez, Engineering, 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 24 months after publication by request of the publisher. en
dc.check.date 2021-05-17
dc.date.updated 2019-06-07T09:47:41Z
dc.description.version Accepted Version en
dc.internal.rssid 488127334
dc.contributor.funder China Postdoctoral Science Foundation en
dc.contributor.funder National Natural Science Foundation of China en
dc.contributor.funder European Commission en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Ocean Engineering en
dc.internal.copyrightchecked Yes
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress gregorio.iglesias@ucc.ie en


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© 2019, Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license. Except where otherwise noted, this item's license is described as © 2019, Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license.
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