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Numerical and experimental study on absorber-type wave energy converters concentrically arranged on an octagonal platform

Lookup NU author(s): Professor Pengfei LiuORCiD



This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


© 2022 Elsevier Ltd. Present study considers the performance of a truss-type octagonal platform coupled with multiple wave energy converters (WECs). A numerical model was established to investigate multi-body hydrodynamic interaction between an octagonal platform and absorber-type wave energy converters utilizing CFD tool. Firstly, we analyzed the hydrodynamic performance and absorption power of the isolated WEC under different waves. The numerical results were compared with the physical experimental data to validate the proposed numerical method. Then the effects of the connection type and connection angle between the float arm and float were investigated numerically. Based on the numerical results, the fixed-type WEC with a zero deg connection angle is selected as the final design. Finally, the numerical simulation of multi-point-absorber circularly arranged on the octagonal platform was carried out. The numerical results demonstrated that the multi-body interaction has a remarkable influence on the absorption power and, therefore, it cannot be neglected when evaluate the performance of whole system.

Publication metadata

Author(s): He G, Luan Z, Jin R, Zhang W, Wang W, Zhang Z, Jing P, Liu P

Publication type: Article

Publication status: Published

Journal: Renewable Energy

Year: 2022

Volume: 188

Pages: 504-523

Print publication date: 01/04/2022

Online publication date: 17/02/2022

Acceptance date: 12/02/2022

Date deposited: 27/04/2022

ISSN (print): 0960-1481

ISSN (electronic): 1879-0682

Publisher: Elsevier Ltd


DOI: 10.1016/j.renene.2022.02.045

ePrints DOI: 10.57711/twpe-8812


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HIT.OCEF. 2021037