Tidal Turbine Load Variability in Following and Opposing Irregular Wave Conditions

Sam Draycott, Jeffrey Steynor, Anup Nambiar, Brian Sellar, Vengatesan Venugopal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

Waves induce large loads on tidal turbines, yet the effect of irregular waves, particularly those which oppose the current direction, have received little attention. Here we experimentally assess the loading resulting from 24 irregular combined wavecurrent cases, statistically presenting the load variability acting on a 1:15 scale tidal turbine. Comparisons are made between following and opposing conditions of equivalent wave parameters, and the effect of varying frequency and amplitude is assessed. Example load distributions are also shown, along with streamwise variation of significant wave height around the turbine. It is concluded that both opposing and following conditions must be assessed to effectively de-risk tidal turbine design: Large differences are observed both in terms of the nature & magnitude of the resulting loads and the wave interaction with the surrounding flow field.
Original languageEnglish
Title of host publicationProceedings of the ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering OMAE2020, June 28-July 3, Fort Lauderdale, FL, USA. OMAE2020-18701
PublisherThe American Society of Mechanical Engineers(ASME)
Number of pages10
Volume9
ISBN (Print)978-0-7918-4992-7
DOIs
Publication statusPublished - 18 Dec 2020
EventASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering - Virtual, Online
Duration: 3 Aug 20207 Aug 2020

Publication series

NameInternational Conference on Offshore Mechanics and Artic Engineering
PublisherThe American Society of Mechanical Engineers (ASME)

Conference

ConferenceASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering
Period3/08/207/08/20

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