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Effects of wave-current interactions on the performance of tidal stream turbines

Ordonez-Sanchez, Stephanie, Porter, Kate, Frost, Carwyn ORCID:, Allmark, Matthew James ORCID:, Johnstone, Cameron and O'Doherty, Timothy ORCID: 2016. Effects of wave-current interactions on the performance of tidal stream turbines. Presented at: 3rd Asian Wave and Tidal Energy Conference, Singapore. Malaysia, 24 - 28 October 2016.

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The main objective of this paper is to analyse extreme cases of wave-current interactions on tidal stream energy converters. Experiments were undertaken in the INSEAN tow tank facility where flow velocities of 0.5 and 1m/s were used with and without waves. The wave variations studied in this testing campaign were between wave heights of 0.2 to 0.4m with a 2s wave period. These wave conditions were considered extreme cases considering the use of a turbine with a rotor diameter of 0.5m. The turbine was equipped with a torque transducer, an encoder and a strain gauge to measure power coefficients and forces on a single blade root. Therefore, the results of this experiment are used to improve the understanding of wave effects on tidal stream rotors by analysing not only the temporal variations of power and blade loading but also the peak variations of them.

Item Type: Conference or Workshop Item (Paper)
Date Type: Completion
Status: Unpublished
Schools: Engineering
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
Funders: EU
Related URLs:
Date of First Compliant Deposit: 12 January 2017
Last Modified: 20 Nov 2022 07:20

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