Article Dans Une Revue La Houille Blanche - Revue internationale de l'eau Année : 2014

Wake numerical study of a vertical marine current turbine

Etude numérique du sillage d'une hydrolienne à axe vertical

Résumé

The commercial exploitation of kinetic energy from tidal current involves deploying multiple turbines constituting a park or a farm. The turbines located within the park suffer from the disrupted flow due to the wake of machines located further upstream. This will potentially alter their performance. The evolution of the wake is influenced by the environment and by the machine. A two‑dimensional model of a vertical axis turbine of Darrieus type was per‑ formed to investigate the flow within and downstream the turbine. The relative influences on the characteristics of the wake of two parameters were evaluated: the speed of the upstream flow and the Tip speed ratio λ. The latter seems to be dominant for the lack of speed while the level of turbulence is a function of the two parameters setting.

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Dates et versions

hal-01702034 , version 1 (06-02-2018)

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Mathilde Belhache, Sylvain Guillou, Philippe Grangeret, Dominique Mouazé, Alina Santa‑cruz. Wake numerical study of a vertical marine current turbine. La Houille Blanche - Revue internationale de l'eau, 2014, 6 (6), pp.74-78. ⟨10.1051/lhb/2014066⟩. ⟨hal-01702034⟩
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