A Review on Numerical Development of Tidal Stream Turbine Performance and Wake Prediction

Ahead of the installation of a commercial tidal stream turbine, a 1:30 scale model of the device was tested in a recirculating flume tank. This proved to be the first physical demonstration of the turbine’s unconventional control strategy, which limits the thrust forces on the device by allowing the rotor to enter an overspeed. The tests showed that this simple to implement concept of operation is a cost-effective and reliable means of managing the rotor thrust loads in energetic flows. Subsequent tests highlighted the importance of correctly calculating the controller gain parameter, otherwise detrimental turbine performance characteristics can be expected. When relating these results to that of the commercial device, there are a number of important differences associated with both the environment and scale of the model tests. Despite this, the results are considered encouraging, and provided confidence for the full-scale deployment.

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A coupled blade element momentum – Computational fluid dynamics model for evaluating tidal stream turbine performance

Applied Mathematical Modelling ◽

10.1016/j.apm.2012.07.025 ◽

2013 ◽

Vol 37 (5) ◽

pp. 3006-3020 ◽

Cited By ~ 53

Author(s):

R. Malki ◽

A.J. Williams ◽

T.N. Croft ◽

M. Togneri ◽

I. Masters

Keyword(s):

Fluid Dynamics ◽

Computational Fluid Dynamics ◽

Dynamics Model ◽

Computational Fluid Dynamics Model ◽

Turbine Performance ◽

Tidal Stream ◽

Tidal Stream Turbine ◽

Blade Element

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Wave–current interaction effects on tidal stream turbine performance and loading characteristics

International Journal of Marine Energy ◽

10.1016/j.ijome.2015.09.002 ◽

2016 ◽

Vol 14 ◽

pp. 161-179 ◽

Cited By ~ 32

Author(s):

S.C. Tatum ◽

C.H. Frost ◽

M. Allmark ◽

D.M. O’Doherty ◽

A. Mason-Jones ◽

...

Keyword(s):

Interaction Effects ◽

Turbine Performance ◽

Tidal Stream ◽

Current Interaction ◽

Tidal Stream Turbine

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Influence of a velocity profile & support structure on tidal stream turbine performance

Renewable Energy ◽

10.1016/j.renene.2012.10.022 ◽

2013 ◽

Vol 52 ◽

pp. 23-30 ◽

Cited By ~ 42

Author(s):

A. Mason-Jones ◽

D.M. O'Doherty ◽

C.E. Morris ◽

T. O'Doherty

Keyword(s):

Velocity Profile ◽

Support Structure ◽

Turbine Performance ◽

Tidal Stream ◽

Tidal Stream Turbine

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Simulation of Tidal Stream Turbine Working Near Free Surface

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.361-363.291 ◽

2013 ◽

Vol 361-363 ◽

pp. 291-295 ◽

Cited By ~ 3

Author(s):

Jun Wei Zhou ◽

Da Zheng Wang

Keyword(s):

Free Surface ◽

Wave Height ◽

Wave Surface ◽

Turbine Efficiency ◽

Turbine Performance ◽

Tidal Stream ◽

Wave Induced ◽

Tidal Stream Turbine ◽

The Relationship ◽

Main Factor

The tidal stream kinetic energy can be abstracted by the horizontal axial turbine, and most concentrate closing to seaside, where the tidal stream turbine must work near the free surface. The interaction between wave surface and the turbine will affect the turbine performance. In this work, the performance of tidal stream turbine working beneath the free surface was simulated, and the wave was discussed. The results indicated that the turbine depth Fr number is the main factor that affects wave induced by the turbine. As the turbine depth Fr number is less than 1.0, the wave is not apparent, and as the Fr number increased, the wave height rose. By the analysis of turbine performance, it is discovered that the wave will influence turbine efficiency, but the relationship between wave height and turbine efficiency is not regular.

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