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	Provedor de dados ArchiMer (5) Autor Germain, Gregory (3) Mycek, Paul (3) Pinon, Gregory (3) Rivoalen, Elie (3) Gaurier, Benoit (2) Carlier, Clement (1) Choma Bex, Camille (1) Fur, Arnaud (1) Lothode, Corentin (1) Trasch, Martin (1) Mais... Palavra-chave Vortex method (5) Essais expérimentaux (2) Experimental trials (2) Ambient turbulence (1) Array (1) Corotational finite elements (1) Corotationnel (1) Effet d’échelle (1) Experimental trial (1) Fluid-structure interaction (1) Flutter instability (1) Horizontal axis marine current turbine arrays (1) Houle (1) Hydrolienne (1) Hydroliennes (1) Instabilité de flottement (1) Interaction effects (1) Interaction fluidestructure (1) Interactions (1) Lagrangian method (1) Mais... Tipo do documento Text (5) Ano 2020 (1) 2019 (1) 2013 (3) País France (5) Idioma Inglês (3) Francês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 5 Primeira ... 1 ... Última Numerical and Experimental Study of the Interaction between two Marine Current Turbines ArchiMer Mycek, Paul; Gaurier, Benoit; Germain, Gregory; Pinon, Gregory; Rivoalen, Elie. The understanding of interaction effects between marine energy converters represents the next step in the research process that should eventually lead to the deployment of such devices. Although some a priori considerations have been suggested recently, very few real condition studies have been carried out concerning this issue. Trials were run on 1/30 th scale models of three-bladed marine current turbine prototypes in a flume tank. The present work focuses on the case where a turbine is placed at different locations in the wake of a first one. The interaction effects in terms of performance and wake of the second turbine are examined and compared to the results obtained on the case of one single turbine. Besides, a three-dimensional software, based on a... Tipo: Text Palavras-chave: Marine current turbine; Array; Interaction effects; Vortex method; Laser Doppler Velocimetry. Ano: 2013 URL: http://archimer.ifremer.fr/doc/00170/28165/26427.pdf Étude numérique et expérimentale du comportement d’hydroliennes ArchiMer Mycek, Paul. This manuscript deals with the numerical and experimental characterisation of the behaviour of marine current turbines. In the experimental part, trials were run at IFREMER’s wave and current flume tank in Boulogne-Sur-Mer, on prototypes of three-bladed horizontal axis turbines. Configurations with one single turbine on the one hand, and two turbines aligned with the incoming flow on the other hand, were considered for a large range of TSRs and, when relevant, of inter-device distances. The behaviour of the turbines is analysed in terms of performances (power and thrust coefficients) and development of the wake. The effects of the ambient turbulence intensity rate are also considered. Besides, numerical computations, obtained from a tridimensional unsteady... Tipo: Text Palavras-chave: Hydroliennes; Interactions; Essais expérimentaux; Simulation numérique; Méthode particulaire; Méthode Vortex.; Marine current turbines; Interactions; Experimental trials; Numerical computation; Particle method; Vortex method. Ano: 2013 URL: http://archimer.ifremer.fr/doc/00170/28152/26382.pdf Caractérisation expérimentale et numérique du comportement hydrodynamique d’une hydrolienne à membrane ondulante ArchiMer Trasch, Martin. The thesis presented in this document deals with the caracterisation of the behaviour of an undulating membrane tidal energy converter. This kind of device uses the flutter instabilities occurring between a semi-rigid pre-strained membrane and a fluid flow in order to convert the sea currents energy. Above a certain critical flow speed, the structure ondulates, thus activating the linear converters fixed on it. In order to study this system, an experimental model is developped and tested in a flume tank. The power conversion system is simulated by hydraulic dampers. The membrane’s dynamics is analysed in many configurations through trajectory and force measurements, and leads to a parametric study. More realistic flow conditions are also studied, such as... Tipo: Text Palavras-chave: Énergies marines renouvelables; Hydrolienne; Interaction fluidestructure; Instabilité de flottement; Essais expérimentaux; Particle Image Velocimetry; Modélisation numérique; Méthode vortex; Éléments finis; Corotationnel; Houle; Effet d’échelle; Marine renewable energy; Tidal energy converter; Power takeoff; Fluid-structure interaction; Flutter instability; Experimental trial; Particle Image Velocimetry; Numerical model; Vortex method; Corotational finite elements; Surface wave; Scale effect. Ano: 2019 URL: https://archimer.ifremer.fr/doc/00490/60185/63527.pdf Numerical and experimental characterisation of interactions between two marine current turbines ArchiMer Mycek, Paul; Gaurier, Benoit; Germain, Gregory; Lothode, Corentin; Pinon, Gregory; Rivoalen, Elie. The implantation and deployment of marine current turbine arrays depend on the understanding of their interactions. Based on a priori suggestions about the layout of marine energy converter arrays, we propose to highlight interactions effects between two horizontal axis marine current turbines, in open water. experimental trials were run in IFREMER’s wave and current flume tank in Boulogne-sur-Mer (France), on marine current turbine models. Our study focuses on setups were the second turbine is axially aligned, at different distances, in the wake of the first one. Interaction effects are pointed out both in terms of performance and wake characterisation by means of a comparison with results on a single turbine. This study shows that the downstream turbine... Tipo: Text Palavras-chave: Marine energy; Horizontal axis marine current turbine arrays; Experimental trials; Laser Doppler velocimetry; Numerical simulation; Vortex method. Ano: 2013 URL: http://archimer.ifremer.fr/doc/00143/25401/23557.pdf A stochastic method to account for the ambient turbulence in Lagrangian Vortex computations ArchiMer Choma Bex, Camille; Carlier, Clement; Fur, Arnaud; Pinon, Gregory; Germain, Gregory; Rivoalen, Elie. This paper describes a detailed implementation of the Synthetic Eddy Method (SEM) initially presented in Jarrin et al. (2006) applied to the Lagrangian Vortex simulation. While the treatment of turbulent diffusion is already extensively covered in scientific literature, this is one of the first attempts to represent ambient turbulence in a fully Lagrangian framework. This implementation is well suited to the integration of PSE (Particle Strength Exchange) or DVM (Diffusion Velocity Method), often used to account for molecular and turbulent diffusion in Lagrangian simulations. The adaptation and implementation of the SEM into a Lagrangian method using the PSE diffusion model is presented, and the turbulent velocity fields produced by this method are then... Tipo: Text Palavras-chave: Ambient turbulence; Synthetic Eddy Method; Lagrangian method; Turbulence; Vortex method; Wake. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00652/76458/77550.pdf Registros recuperados: 5 Primeira ... 1 ... Última

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