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dc.contributor.authorOsbourne, Nicholas
dc.date.accessioned2015-08-24T16:38:28Z
dc.date.available2015-08-24T16:38:28Z
dc.identifier.urihttp://hdl.handle.net/10222/60792
dc.description.abstractA three-dimensional CFD model of a tidal turbine was successfully created. The effect of physical parameters, such as twist axis location and blade trailing edge roundness, were discussed. These were found to have a significant impact on the turbine performance. A mesh convergence study was performed to ensure that wake physics is properly resolved. Likewise, a domain length study ensured a full wake recovery. Model validation was completed wherein the turbine performance was compared to experimental data. The impact of blockage was investigated by increasing the cross-sectional domain size. This exhibited minimal impact on turbine performance but greatly affected wake recovery. It was found that blade tip shed vortices are a major contributor to wake recovery. Blockage impeded this contribution, advecting the wake downstream. A complete wake recovery was modelled for a range of TSRs and a preliminary relation between turbine rotation rate and wake recovery distance was determined.en_US
dc.language.isoenen_US
dc.subjectCFDen_US
dc.subjectTidalen_US
dc.subjectWakeen_US
dc.title3D Modelling of a tidal turbine - A numerical investigation of wake phenomenaen_US
dc.typeThesisen_US
dc.date.defence2015-08-18
dc.contributor.departmentDepartment of Mechanical Engineeringen_US
dc.contributor.degreeMaster of Applied Scienceen_US
dc.contributor.external-examinerDr. Jan Haelssigen_US
dc.contributor.graduate-coordinatorDr. Ya-Jun Panen_US
dc.contributor.thesis-readerDr. Sue Molloyen_US
dc.contributor.thesis-supervisorDr. Dominic Groulxen_US
dc.contributor.ethics-approvalNot Applicableen_US
dc.contributor.manuscriptsNot Applicableen_US
dc.contributor.copyright-releaseNot Applicableen_US
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