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dc.contributor.authorMortimer, W
dc.contributor.authorRaby, A
dc.contributor.authorAntonini, A
dc.contributor.authorGreaves, D
dc.contributor.authorvan den Bremer, T
dc.date.accessioned2022-04-06T13:19:07Z
dc.date.issued2022-06
dc.identifier.issn0378-3839
dc.identifier.issn1872-7379
dc.identifier.other104121
dc.identifier.urihttp://hdl.handle.net/10026.1/19000
dc.description.abstract

Using linear (first-order) wave generation theory in laboratory experiments, leads to significant contamination of the wave field by free non-linear (second-order) error waves, increasingly so at shallower depths. Second-order wave generation theory has previously been established, and so has correct generation of the bound set-down, made up from second-order bound waves in the sub-harmonic part of the spectrum, for bichromatic and irregular wave fields in shallow to intermediate depth. In the present work, different from previous studies, we validate second-order wave theory explicitly for isolated wave groups, which provide a demanding test on the correct generation of sub-harmonic bound waves and the stroke length of the wavemaker. We do so for shallow to intermediate water depth, where some previous attempts at full elimination of sub-harmonic error waves have been hampered by limited paddle stroke. We overcome these limitations by applying second-order wavemaker theory to a piston-type paddle with an extended paddle stroke that can thence generate the bound set-down correctly. We show that sub-harmonic error waves are eliminated by considering wave groups in relative depths k0d = 0.6–1.1, with important applications in coastal engineering experiments, such as run-up and overtopping.

dc.format.extent104121-104121
dc.languageen
dc.language.isoen
dc.publisherElsevier
dc.subjectFocused wave groups
dc.subjectSecond-order wave generation
dc.subjectHarmonic decomposition
dc.subjectSet-down
dc.subjectError waves
dc.titleCorrect generation of the bound set-down for surface gravity wave groups in laboratory experiments of intermediate to shallow depth
dc.typejournal-article
dc.typeArticle
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000793826200003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.volume174
plymouth.publisher-urlhttp://dx.doi.org/10.1016/j.coastaleng.2022.104121
plymouth.publication-statusPublished
plymouth.journalCoastal Engineering
dc.identifier.doi10.1016/j.coastaleng.2022.104121
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Admin Group - REF
plymouth.organisational-group/Plymouth/Admin Group - REF/REF Admin Group - FoSE
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
plymouth.organisational-group/Plymouth/Users by role/Researchers in ResearchFish submission
dcterms.dateAccepted2022-03-21
dc.rights.embargodate2022-4-8
dc.identifier.eissn1872-7379
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1016/j.coastaleng.2022.104121
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2022-06
rioxxterms.typeJournal Article/Review


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