Turbulence characterization at a tidal energy site using large-eddy simulations: case of the Alderney Race

Sites suitable for the deployment of tidal turbines generally show a combination of complex seabed morphologies and extreme current magnitudes. Such configurations favour the formation of vortices, which can be very powerful. Anticipating the vortex effect on the turbine performance and/or lifespan...

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Published inPhilosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences Vol. 378; no. 2178; p. 20190499
Main Authors Bourgoin, Adrien C. L., Guillou, Sylvain S., Thiébot, Jérôme, Ata, Riadh
Format Journal Article
LanguageEnglish
Published Royal Society, The 21.08.2020
The Royal Society Publishing
Subjects
Environmental Sciences
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Summary:Sites suitable for the deployment of tidal turbines generally show a combination of complex seabed morphologies and extreme current magnitudes. Such configurations favour the formation of vortices, which can be very powerful. Anticipating the vortex effect on the turbine performance and/or lifespan requires refined description of the turbulence. Thanks to increased calculation resources, large-eddy simulation (LES) can now be applied to natural flow. An LES approach developed within the TELEMAC-3D open-source software is presented here. After validating the model with in-situ measurements, the model is applied to characterize the flow statistics of the Alderney Race. This article is part of the theme issue ‘New insights on tidal dynamics and tidal energy harvesting in the Alderney Race’.
Bibliography:ObjectType-Article-1
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One contribution of 14 to a theme issue ‘New insights on tidal dynamics and tidal energy harvesting in the Alderney Race’.
ISSN:1364-503X
1471-2962
DOI:10.1098/rsta.2019.0499