Wave-current interactions in marine current turbines

被引：31

作者：

Barltrop, N. ^{[1
]}

Varyani, K.S. ^{[1
]}

Grant, A. ^{[2
]}

Clelland, D. ^{[1
]}

Pham, Xuan ^{[1
,3
]}

机构：

[1] Department of Naval Architecture and Marine Engineering, Universities of Glasgow and Strathclyde, Glasgow

[2] Department of Mechanical Engineering, University of Strathclyde

[3] Naval Architecture and Marine Engineering, University of Strathclyde, Glasgow G4 0LZ

来源：

Proceedings of the Institution of Mechanical Engineers Part M: Journal of Engineering for the Maritime Environment | 2006年 / 220卷 / 04期

关键词：

Current turbine; Linear blade element-momentum theory; Tidal stream; Wave-current interaction;

D O I：

10.1243/14750902JEME45

中图分类号：

学科分类号：

摘要：

The influence of waves on the dynamic properties of bending moments at the root of blades of tidal stream vertical-axis rotors is reported. Blade element-momentum theory for wind turbines is combined with linear wave theory and used to analyze this influence. Experiments were carried out with a 350 mm diameter rotor to validate the simulation and the comparison shows the ability of the theoretical approach to predict the blade root bending moments. It can be concluded that, in steep waves, linear theory underestimates the dynamic behaviour of bending moments. However, in long waves, linear theory works well. Bending moments at roots of rotor blades fluctuate with significant amplitudes (as much as 50 per cent of mean value for out-of-plane bending moment and 100 per cent of mean value for in-plane bending moment), which will be important for design of tidal stream rotors. © IMechE 2006.

引用

页码：195 / 203

页数：8

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