dc.contributor.author | Osbourne, Nicholas | |
dc.date.accessioned | 2015-08-24T16:38:28Z | |
dc.date.available | 2015-08-24T16:38:28Z | |
dc.date.issued | 2015 | |
dc.identifier.uri | http://hdl.handle.net/10222/60792 | |
dc.description.abstract | A 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.iso | en | en_US |
dc.subject | CFD | en_US |
dc.subject | Tidal | en_US |
dc.subject | Wake | en_US |
dc.title | 3D Modelling of a tidal turbine - A numerical investigation of wake phenomena | en_US |
dc.type | Thesis | en_US |
dc.date.defence | 2015-08-18 | |
dc.contributor.department | Department of Mechanical Engineering | en_US |
dc.contributor.degree | Master of Applied Science | en_US |
dc.contributor.external-examiner | Dr. Jan Haelssig | en_US |
dc.contributor.graduate-coordinator | Dr. Ya-Jun Pan | en_US |
dc.contributor.thesis-reader | Dr. Sue Molloy | en_US |
dc.contributor.thesis-supervisor | Dr. Dominic Groulx | en_US |
dc.contributor.ethics-approval | Not Applicable | en_US |
dc.contributor.manuscripts | Not Applicable | en_US |
dc.contributor.copyright-release | Not Applicable | en_US |