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dc.contributor.authorZhu, K
dc.contributor.authorZheng, S
dc.contributor.authorMichele, S
dc.contributor.authorCao, F
dc.contributor.authorShi, H
dc.contributor.authorGreaves, D
dc.identifier.otherARTN 057120
dc.descriptionThis article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in "Kai Zhu, Siming Zheng, Simone Michele, Feifei Cao, Hongda Shi, Deborah Greaves; Wave diffraction and radiation from a semi-submersible floating foundation for wind turbines: A semi-analytical study. Physics of Fluids 1 May 2023; 35 (5): 057120." and may be found at

Many marine structures are composed of vertical axisymmetric floats. In this paper, a semi-analytical model based on the linear potential flow theory and an eigenfunction expansion method is developed to study wave diffraction and radiation by an array of cylindrical structures. Each structure can be formed by three coaxial cylinders of different dimensions. Based on the semi-analytical model, a constrained matrix equation of motion is presented and solved to evaluate the performance of multiple interconnected cylindrical structures. In order to verify the accuracy of the semi-analytical model, a typical OC4-DeepCwind floating offshore wind turbine (FOWT) is selected for validation. The validated model is, then, applied to study the effect of base column submergence depth, radius, and thickness on the motion response of a semi-submersible platform. Although the results of this study are of significance for the selection of the optimum semi-submersible FOWT for specific locations (with specific prevailing wave directions), the focus of this work was placed on the semi-analytical model itself, which is efficient in modeling the interaction of the wave field and can be used in future FOWT projects.

dc.publisherAmerican Institute of Physics
dc.subject4015 Maritime Engineering
dc.subject40 Engineering
dc.subject7 Affordable and Clean Energy
dc.titleWave diffraction and radiation from a semi-submersible floating foundation for wind turbine: A semi-analytical study
plymouth.journalPhysics of Fluids
plymouth.organisational-group|Plymouth|Faculty of Science and Engineering
plymouth.organisational-group|Plymouth|Faculty of Science and Engineering|School of Engineering, Computing and Mathematics
plymouth.organisational-group|Plymouth|REF 2021 Researchers by UoA
plymouth.organisational-group|Plymouth|Users by role
plymouth.organisational-group|Plymouth|Users by role|Academics
plymouth.organisational-group|Plymouth|REF 2021 Researchers by UoA|UoA12 Engineering

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