Correct generation of the bound set-down for surface gravity wave groups in laboratory experiments of intermediate to shallow depth
dc.contributor.author | Mortimer, William | |
dc.contributor.author | Raby, Alison | |
dc.contributor.author | Antonini, A | |
dc.contributor.author | Greaves, Deborah | |
dc.contributor.author | van den Bremer, T | |
dc.date.accessioned | 2022-04-06T13:19:07Z | |
dc.date.issued | 2022-06 | |
dc.identifier.issn | 0378-3839 | |
dc.identifier.issn | 1872-7379 | |
dc.identifier.other | 104121 | |
dc.identifier.uri | http://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.extent | 104121-104121 | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Elsevier | |
dc.subject | Focused wave groups | |
dc.subject | Second-order wave generation | |
dc.subject | Harmonic decomposition | |
dc.subject | Set-down | |
dc.subject | Error waves | |
dc.title | Correct generation of the bound set-down for surface gravity wave groups in laboratory experiments of intermediate to shallow depth | |
dc.type | journal-article | |
dc.type | Journal Article | |
plymouth.author-url | https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000793826200003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008 | |
plymouth.volume | 174 | |
plymouth.publication-status | Published | |
plymouth.journal | Coastal Engineering | |
dc.identifier.doi | 10.1016/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.dateAccepted | 2022-03-21 | |
dc.rights.embargodate | 2022-4-8 | |
dc.identifier.eissn | 1872-7379 | |
dc.rights.embargoperiod | Not known | |
rioxxterms.versionofrecord | 10.1016/j.coastaleng.2022.104121 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.licenseref.startdate | 2022-06 | |
rioxxterms.type | Journal Article/Review |