Experimental characterisation of flow effects on marine current turbine behaviour and on its wake properties

Type Article
Date 2010-11
Language English
Author(s) Maganga Fabrice1, 2, Germain GregoryORCID1, 3, King J.4, Pinon G.2, Rivoalen E.5
Affiliation(s) 1 : IFREMER, Hydrodynam & Metocean Serv, F-62321 Boulogne Sur Mer, France.
2 : Univ Havre, Lab Ondos & Milieux Complexes, CNRS, FRE 3102, F-76058 Le Havre, France.
3 : Univ Lille Nord France, F-59000 Lille, France.
4 : Univ Bristol, Fac Engn, Bristol B58 1TH, Avon, England.
5 : Lab Mecan Rouen, F-76801 St Etienne Du Rouvay, France.
Source Iet Renewable Power Generation (1752-1416) (Inst Engineering Technology-iet), 2010-11 , Vol. 4 , N. 6 , P. 498-509
DOI 10.1049/iet-rpg.2009.0205
WOS© Times Cited 98
Abstract Experimental results of tests carried out to investigate the hydrodynamics of marine current turbines are presented The objective is to build an experimental database in order to validate the numerical developments conducted to characterise the flow perturbations induced by marine current turbines For that purpose, we used a tri-bladed horizontal axis turbine The work is dedicated to measuring the behaviour of the system and to characterising the wake generated by the turbine The efficiency of the device is quantified by the measurement of the thrust and the amount of power generated by the rotor for various inflow conditions, whereas the wake is characterised by Laser Doppler Velocimetry Particular attention is paid to the flow characteristic effects on the performance of a 0 70 m diameter turbine The load predictions on the structure and the measured performance of the turbine over its working range of currents and rotational speeds are presented The results showed that this kind of turbine is sensitive to the quality of the incoming flow The turbulence intensity effects on turbine behaviour and on its wake are also characterised in order to study how the far wake decays downstream and to estimate the effect produced in downstream turbines
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