Data/hora: 05/06/2024 19:14:35

Provedor de dados: | 5
País: | France
Título: | Étude expérimentale des performances d’une hydrolienne, soumise aux effets de la turbulence et de l’interaction houle-courant
Autores: | Gaurier, Benoit.
Data: | 2020-11-05
Ano: | 2020
Palavras-chave: | Hydrolienne; Énergie marine renouvelable; Essais expérimentaux; PIV; LDV; Turbulence; Interaction houle-courant; Horizontal axis tidal turbine; Renewable energy; Experimental trials; PIV; LDV; Turbulence; Wave-current interaction.
Resumo: | In the context of global warming, the extraction of energy by tidal turbines from marine currents must be integrated into the future energetic mix. Being confronted with a difficult marine environment, it is required to know the turbines’ behaviour when they are submitted to realistic solicitations to guarantee an optimal use. In this work, the marine turbine performance is studied when the machine is submitted to a turbulent current or a combined wave-current effect. The physical representation of trials at reduced scale is first described focusing on the incoming flow characterisation and its effects on a turbine model at 1:20 scale. The location and measurement type of the upstream velocity are discussed to accurately define its performance and its temporal and spectral response. Such parameters are essential in the definition of certification standards for experimental modelling. The bathymetric variation representation enables turbulent flow to be generated. They are mainly characterized by large eddies with a size corresponding to the rotor. The turbine response is determined in a global and local way for many relative turbine locations versus the obstacles. The combined wave and current effects on the turbine behaviour are studied from measurement results carried out in three facilities. Significant differences between the tanks appear and a discussion on their origin is proposed.
Tipo: | Text
Idioma: | Francês

Identificador:

https://archimer.ifremer.fr/doc/00660/77197/78624.pdf

https://archimer.ifremer.fr/doc/00660/77197/

Editor: | Université Le Havre Normandie
Formato: | application/pdf

Fonte:

info:eu-repo/semantics/openAccess

restricted use