The Fluid Mechanics of Tidal Stream Energy Conversion

2021 ◽  
Vol 53 (1) ◽  
pp. 287-310
Author(s):  
Thomas A.A. Adcock ◽  
Scott Draper ◽  
Richard H.J. Willden ◽  
Christopher R. Vogel
Keyword(s):  
Fluid Mechanics ◽  
Energy Conversion ◽  
Fast Moving ◽  
Energy Generation ◽  
Tidal Stream ◽  
Tidal Stream Energy ◽  
Tidal Streams ◽  
Mechanical Devices

Placing mechanical devices into fast-moving tidal streams to generate clean and predictable electricity is a developing technology. This review covers the fundamental fluid mechanics of this application, which is important for understanding how such devices work and how they interact with the tidal stream resource. We focus on how tidal stream turbines and energy generation are modeled analytically, numerically, and experimentally. Owing to the nature of the problem, our review is split into different scales—from turbine to array and regional—and we examine each in turn.

scholarly journals Unsteady flow around a two-dimensional section of a vertical axis turbine for tidal stream energy conversion

2009 ◽  
Vol 1 (2) ◽  
Author(s):  
Hyun Ju Jung ◽  
Ju Hyun Lee ◽  
Shin Hyung Rliee ◽  
Museok Song ◽  
Beom-Soo Hyun
Keyword(s):  
Unsteady Flow ◽  
Energy Conversion ◽  
Stokes Equations ◽  
Vertical Axis ◽  
Navier Stokes ◽  
Two Dimensional ◽  
Navier Stokes Equations ◽  
Tidal Stream ◽  
Tidal Stream Energy ◽  
Vertical Axis Turbine

ABSTRACTThe two-dimensional unsteady flow around a vertical axis turbine for tidal stream energy' conversion was investigated using a computational fluid dynamics tool solving the Reynolds-Averaged Navier-Stokes equations. The geometry' of the turbine blade section was NACA653-01S airfoil. The computational analysis was done at several different angles of attack and the results were compared with the corresponding experimental data for validation and calibration. Simulations were then carried out for the two-dimensional cross section of a vertical axis turbine. The simulation results demonstrated the usefulness of the method for the typical unsteady flows around vertical axis turbines. The optimum turbine efficiency was achieved for carefully selected combinations of the number of blades and tip speed ratios.

Black guillemot ecology in relation to tidal stream energy generation: An evaluation of current knowledge and information gaps

2018 ◽  
Vol 134 ◽  
pp. 121-129 ◽  
Author(s):  
Daniel T. Johnston ◽  
Robert W. Furness ◽  
Alexandra M.C. Robbins ◽  
Glen Tyler ◽  
Mark A. Taggart ◽  
...  
Keyword(s):  
Current Knowledge ◽  
Energy Generation ◽  
Black Guillemot ◽  
Tidal Stream ◽  
Tidal Stream Energy ◽  
Information Gaps

Testing Device for Hydrodynamic Characteristic on Conversion Devices of Tidal Stream Energy

2010 ◽  
Author(s):  
Li Long ◽  
Wang Ze ◽  
Zhou Kaining ◽  
Li Bo
Keyword(s):  
Energy Conversion ◽  
Hydrodynamic Model ◽  
Hydrodynamic Characteristic ◽  
Cost Effective ◽  
Electrical Energy ◽  
Testing Device ◽  
Essential Condition ◽  
Tidal Stream ◽  
Tidal Stream Energy ◽  
Conversion Technology

The feasibility of tidal in stream energy conversion technology, especially the demonstration of the efficiency in energy conversion, is of consequence to provide efficient devices and cost-effective electrical energy. The excellent hydrodynamic model of the conversion devices is an essential condition of a successful tidal flowing power. The experimentation of the hydrodynamic model in laboratory should be first selecting by reason of the reliability and immediate data to assess the hydrodynamic characteristic. But, the simulation of a flowing condition in laboratory is not easily accomplished, as a result of need of bigger flowing speed and greater bigger flume. Based on the relativity principle, the relative testing method of the energy conversion technology in tidal stream was provided. The peculiarity, the structure of the testing device was indicated. The function of every composing proportion on the testing device was explained. The process of experimentation was introduced.

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