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dc.contributor.authorRogan, C
dc.contributor.authorMiles, Jonathon
dc.contributor.authorSimmonds, David
dc.contributor.authorIglesias, Gregorio
dc.date.accessioned2016-09-09T23:46:55Z
dc.date.available2016-09-09T23:46:55Z
dc.date.issued2016-08-01
dc.identifier.issn0960-1481
dc.identifier.issn1879-0682
dc.identifier.otherC
dc.identifier.urihttp://hdl.handle.net/10026.1/5430
dc.descriptionpublisher: Elsevier articletitle: The turbulent wake of a monopile foundation journaltitle: Renewable Energy articlelink: http://dx.doi.org/10.1016/j.renene.2016.02.050 content_type: article copyright: Copyright © 2016 Elsevier Ltd. All rights reserved.
dc.description.abstract

An experimental programme is presented, examining the turbulent wake of a monopile foundation in a current. Velocity was recorded across an extensive domain downstream of a model monopile in a 0.5 m deep basin, using an acoustic Doppler velocimeter array. The distribution of turbulent kinetic energy (TKE) is examined across the entire domain. Tests were undertaken using several combinations of pile diameter (D = 0.1 and 0.2 m) and mean flow velocity (u0- = 0.08-0.24 m/s), representing typical prototype conditions at a scale of 1:50. It is shown that turbulence can be predicted using the distance downstream (x) and off axis (y), the pile diameter, and the mean flow velocity. Two new parameters are introduced to simplify assessment of proposed structures. Relative Excess Turbulence (RET) is the extra turbulence generated by the pile, normalised by the ambient turbulence. Turbulence Recovery Lengthscale (TRL) is the distance downstream (normalised by D) required for RET to fall below a given threshold. Results show that RET decays exponentially with distance downstream. Across the wake, RET fitted a Gaussian function with peak values at the wake centreline. TRL is estimated at 40 for an RET threshold of 1.0 and 400 for an RET threshold of 0.1.

dc.format.extent180-187
dc.languageen
dc.language.isoen
dc.publisherElsevier BV
dc.subjectMonopile
dc.subjectTurbulence
dc.subjectWindfarm
dc.subjectMonopile array
dc.subjectWindfarm environmental impact
dc.subjectCurrent
dc.titleThe turbulent wake of a monopile foundation
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000374617000016&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.volume93
plymouth.publication-statusPublished
plymouth.journalRenewable Energy
dc.identifier.doi10.1016/j.renene.2016.02.050
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/PRIMaRE Publications
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA12 Engineering
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dcterms.dateAccepted2016-02-17
dc.rights.embargodate2017-3-1
dc.identifier.eissn1879-0682
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1016/j.renene.2016.02.050
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2016-08-01
rioxxterms.typeJournal Article/Review


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