Individual violent wave-overtopping events: behaviour and estimation
dc.contributor.author | Raby, Alison | |
dc.contributor.author | Jayaratne, R | |
dc.contributor.author | Bredmose, H | |
dc.contributor.author | Bullock, G | |
dc.date.accessioned | 2019-01-31T09:05:13Z | |
dc.date.issued | 2020-01-02 | |
dc.identifier.issn | 0022-1686 | |
dc.identifier.issn | 1814-2079 | |
dc.identifier.uri | http://hdl.handle.net/10026.1/13258 | |
dc.description.abstract |
To better understand individual violent wave overtopping, of significance for coastal defence design, three breaking wave types (steep-fronted, plunging and broken) based on focused wave groups, were generated in laboratory and numerical models. High-speed video captured overtopping events and produced velocity vector maps by means of bubble image velocimetry (BIV). Results were compared with a numerical model based on a linear wave detection procedure and a two-phase incompressible Navier–Stokes-based solver. This novel approach revealed that the overtopping waves comprised an initial jet of 0.2 s duration, but dominated by quasi-steady flow. Whilst laboratory surface-elevation time-histories were highly repeatable, overtopping volume repeats were sensitive to the breaker type. Measured volumes were compared with: the numerical model (which over-predicted, but was reasonably accurate for steep-fronted waves); estimations based on BIV results (which provided very close agreement for the steep-fronted waves); and a weir-based analogy (which provided reasonable agreement, but always under-predicted). | |
dc.format.extent | 34-46 | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Taylor & Francis | |
dc.subject | Breaking waves | |
dc.subject | bubble image velocimetry | |
dc.subject | coastal engineering | |
dc.subject | flow visualization and imaging | |
dc.subject | incompressible Navier-Stokes solver | |
dc.subject | laboratory studies | |
dc.subject | violent wave overtopping | |
dc.title | Individual violent wave-overtopping events: behaviour and estimation | |
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:000508914800003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008 | |
plymouth.issue | 1 | |
plymouth.volume | 58 | |
plymouth.publication-status | Published | |
plymouth.journal | Journal of Hydraulic Research | |
dc.identifier.doi | 10.1080/00221686.2018.1555549 | |
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 | 2018-11-30 | |
dc.rights.embargodate | 2019-2-2 | |
dc.identifier.eissn | 1814-2079 | |
dc.rights.embargoperiod | Not known | |
rioxxterms.funder | Engineering and Physical Sciences Research Council | |
rioxxterms.identifier.project | Fundamentals of overtopping from individual violent water wave impacts | |
rioxxterms.versionofrecord | 10.1080/00221686.2018.1555549 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.type | Journal Article/Review | |
plymouth.funder | Fundamentals of overtopping from individual violent water wave impacts::Engineering and Physical Sciences Research Council |