Wave radiation from a truncated cylinder of arbitrary cross section

dc.contributor.authorYu, Huifeng
dc.contributor.authorZheng, Siming
dc.contributor.authorZhang, Yongliang
dc.contributor.authorIglesias, Gregorio
dc.contributor.funderChina Postdoctoral Science Foundationen
dc.contributor.funderNational Natural Science Foundation of Chinaen
dc.contributor.funderEuropean Commissionen
dc.contributor.funderEuropean Regional Development Funden
dc.date.accessioned2019-02-18T19:44:19Z
dc.date.available2019-02-18T19:44:19Z
dc.date.issued2019-01-18
dc.date.updated2019-02-18T18:33:21Z
dc.description.abstractIn this paper, a semi-analytical model for solving wave radiation from a truncated cylinder of arbitrary cross section is presented based on linear potential flow theory. The water domain is divided into the interior domain beneath the cylinder and the exterior domain outside the vertical cylinder column. Radiated spatial potentials in these subdomains are expressed as a series expansion of eigen-functions using the method of separation of variables. The continuity conditions for pressure and velocity are satisfied at the interface of the two domains, where the Fourier series expansion method is employed to deal with the radius function associated terms. Therefore, the unknown coefficients in the radiated potential expressions are determined by means of the eigen-function matching method. Hydrodynamic coefficients of the truncated cylinder are evaluated directly based on the radiated spatial potentials. Case studies on wave radiation from a truncated cylinder with “cosine” and “circular” cross sections show a good agreement between the semi-analytical results of added-mass/radiation damping and numerical ones/published data. The validated semi-analytical model is then adopted to study the hydrodynamic characteristics of truncated cylinders with “circular”, “cosine”, “elliptical” and “quasi-elliptical” sections. For the latter case, the influence of draft on wave radiation is also investigated.en
dc.description.sponsorshipChina Postdoctoral Science Foundation (Grant Nos. 2016M601041; 2017T100085); National Natural Science Foundation of China (Grant Nos. 51679124; 51479092); European Commission (INTERREG V Intelligent Community Energy (ICE) Project No. 5025)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationYu, H., Zheng, S., Zhang, Y. and Iglesias, G. (2019) 'Wave radiation from a truncated cylinder of arbitrary cross section', Ocean Engineering, 173, pp. 519-530. doi:10.1016/j.oceaneng.2019.01.013en
dc.identifier.doi10.1016/j.oceaneng.2019.01.013
dc.identifier.endpage530en
dc.identifier.issn0029-8018
dc.identifier.journaltitleOcean Engineeringen
dc.identifier.startpage519en
dc.identifier.urihttps://hdl.handle.net/10468/7516
dc.identifier.volume173en
dc.language.isoenen
dc.publisherElsevier B.V.en
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.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectPotential flowen
dc.subjectSemi-analytical modelen
dc.subjectAdded-massen
dc.subjectRadiation dampingen
dc.subjectTruncated cylinderen
dc.subjectWave-structure interactionen
dc.titleWave radiation from a truncated cylinder of arbitrary cross sectionen
dc.typeArticle (peer-reviewed)en
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