Unsteady hydrodynamics of full-scale tidal turbines

Gabriel Scarlett, Ton van den Bremer, Brian Sellar, Ignazio Maria Viola

Research output: Contribution to conferenceAbstractpeer-review

Abstract

Due to the lack of full-scale measurements of the flow around tidal turbine blades, it is not clear if unsteadiness in the background flow can induce dynamic stall and the significance of this on the rotor’s performance. To investigate, we develop a model that couples dynamic stall, rotational augmentation and blade element momentum theory with real flow measurements. We found that large, realistic waves lead to large fluctuations in power and thrust, mostly due to inviscid unsteady hydrodynamic effects near the blade tip. Conversely, flow fluctuations have little effect on the rotor’s mean thrust and power.
Original languageEnglish
Publication statusPublished - 2018
Event6th Oxford Tidal Energy Workshop - Oxford, United Kingdom
Duration: 26 Mar 201827 Mar 2018

Conference

Conference6th Oxford Tidal Energy Workshop
Abbreviated titleOTE2018
CountryUnited Kingdom
CityOxford
Period26/03/1827/03/18

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