Towards a turbulence characterization in tidal energy sites. First results of THYMOTE project

Guillou, Sylvain; Filipot, Jean-François; Thiebot, Jérôme; Germain, Grégory; Chaplain, Nicolas; Ikheunnicheu, Maria; Duart, Rui; Gaurier, Benoît; Bourgoin, Adrien; Mercier, Philippe; Ata, Riadh; Laverne, Jérôme; Benhamadouche, Sofiane; Pieterse, Aline; Maisondieu, Christophe; Poizot, Emmanuel; Poirier, Jean-Charles; Auvray, Cedric; Droniou, Elois; Arramounet, Valentin; Pinon, Grégory

doi:10.1051/matecconf/201926105002

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2020

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“…Each tidal site of interest for the turbines’ implantation should thus be characterized carefully. The Alderney Race (Raz Blanchard in French) situated between the Cap de la Hague (France) and the Alderney island is a highly energetic tidal site that was studied during the THYMOTE project [10].…”

Section: Introductionmentioning

confidence: 99%

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

Bourgoin

Guillou

Thiebot

et al. 2020

Phil. Trans. R. Soc. A.

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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’.

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Section: Introductionmentioning

confidence: 99%