Show simple item record

dc.contributor.authorZhou, B
dc.contributor.authorZhang, Q
dc.contributor.authorJin, P
dc.contributor.authorLi, Y
dc.contributor.authorLiu, Y
dc.contributor.authorZheng, Siming
dc.contributor.authorNing, D
dc.date.accessioned2022-01-21T05:28:38Z
dc.date.issued2022-02-15
dc.identifier.issn0029-8018
dc.identifier.issn1873-5258
dc.identifier.other110576
dc.identifier.urihttp://hdl.handle.net/10026.1/18597
dc.description.abstract

A hybrid system integrating a power take-off (PTO) system into a floating breakwater is a promising candidate for both shoreline protection and commercial wave energy extraction. Although geometric asymmetry is important to such PTO-integrated breakwaters, its role in energy conversion efficiency and wave attenuation is poorly understood. In this study, a two-dimensional semi-analytical model dealing with floats with arbitrary bottom shapes is established based on the potential flow theory. To quantify the geometric asymmetry reflected by PTO-integrated breakwaters with different contours, the degree of asymmetry and the absolute asymmetry are newly defined mathematically. A set of symmetric and asymmetric PTO-integrated breakwaters are comparatively studied to demonstrate the effect of linear PTO damping and geometric asymmetry on the transmission coefficient, the reflection coefficient, and the energy conversion efficiency. Results show that no matter the hybrid system is symmetric or asymmetric, a larger PTO damping is beneficial for wave attenuation in longer waves, particularly at the heaving natural period of the device. On the premise that the PTO damping is optimized, an increase in the degree of asymmetry greatly improves the energy conversion efficiency. An increase in the absolute asymmetry slightly improves wave attenuation.

dc.format.extent110576-110576
dc.languageen
dc.language.isoen
dc.publisherElsevier
dc.subjectBreakwater
dc.subjectWave energy converter
dc.subjectHybrid system
dc.subjectGeometric asymmetry
dc.subjectEnergy conversion efficiency
dc.subjectWave attenuation
dc.titleGeometric asymmetry in the energy conversion and wave attenuation of a power-take-off-integrated floating breakwater
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000783623100003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.volume246
plymouth.publication-statusPublished
plymouth.journalOcean Engineering
dc.identifier.doi10.1016/j.oceaneng.2022.110576
plymouth.organisational-group/Plymouth
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/REF 2021 Researchers by UoA/UoA12 Engineering
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dcterms.dateAccepted2022-01-06
dc.rights.embargodate2023-1-20
dc.identifier.eissn1873-5258
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1016/j.oceaneng.2022.110576
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2022-02-15
rioxxterms.typeJournal Article/Review


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record


All items in PEARL are protected by copyright law.
Author manuscripts deposited to comply with open access mandates are made available in accordance with publisher policies. Please cite only the published version using the details provided on the item record or document. In the absence of an open licence (e.g. Creative Commons), permissions for further reuse of content should be sought from the publisher or author.
Theme by 
Atmire NV