Flume tank characterization of marine current turbine blade behaviour under current and wave loading

RENEWABLE ENERGY

卷:59

Article

Gaurier, Benoit^1,2  Davies, Peter³  Deuff, Albert³  Germain, Gregory^1,2 

[1] IFREMER, Hydrodynam & Metocean Serv, F-62200 Boulogne Sur Mer, France

[2] Univ Lille Nord France, F-59000 Lille, France

[3] IFREMER, Mat & Struct Grp, F-29280 Plouzane, France

关键词: Experimental trials;    Wave and current effects;    Marine current turbine;    Blade deformations;    Hydrodynamic;   

DOI  :  10.1016/j.renene.2013.02.026

来源: Elsevier

【 摘 要 】

The long term reliability of tidal turbines is critical if these structures are to be cost-effective. Optimized design requires a combination of material durability models and structural analyses which must be based on realistic loading conditions. This paper presents results from a series of flume tank measurements on strain gauged scaled turbine blades, aimed at studying these conditions. A detailed series of tests on a 3-blade horizontal axis turbine with 400 mm long blades is presented. The influence of both current and wave-current interactions on measured strains is studied. These tests show that wave-current interactions can cause large additional loading amplitudes compared to currents alone, which must be considered in the fatigue analysis of these systems. (C) 2013 Elsevier Ltd. All rights reserved.

【 授权许可】

Free