Experimental measurements of a synchronized flow velocity and a marine current turbine power production
|Temporal extent||2014-04 -2014-05|
|Author(s)||Gaurier Benoit1, Germain Gregory1, Facq Jean-Valery1, Bacchetti Thomas1, Duran-Medina Olmo2|
|Affiliation(s)||1 : IFREMER, Marine Structures Laboratory, Boulogne-sur-mer, France
2 : Université de Lille, CNRS, UMR 8187, Laboratoire d'Ocanologie et de Géosciences, Wimereux, France
An experimental database has been obtained in order to study the correlation between the flow turbulence and the performances of a marine current turbine. To this aim, a model of a tidal three-bladed horizontal axis turbine (1:20 scale) has been used in the IFREMER wave and current flume tank. In order to understand better the influence of turbulence on the turbine behaviour, the torque and the flow velocity have been recorded simultaneously in two locations (upstream and downstream of the turbine). The power produced has been measured at moderate frequency and the flow velocity measured using a Laser Doppler Velocimeter (LDV) with a high frequency sampling rate over a long period of time (three hours). The objective of this study is to carry out a statistical analysis of the flow time series, the torque measurements, and to study their coherency.
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