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Wave power

About: Wave power is a research topic. Over the lifetime, 2671 publications have been published within this topic receiving 41439 citations. The topic is also known as: wind wave energy & sea wave energy.


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Journal Article
TL;DR: The wind wave regime of Tallinn Bay, Gulf of Finland, is analysed with the use of a simplified method of long-term computations of wave fields based on a high-resolution nested WAM model and Kalbadagrund (1991-2000) wind data.
Abstract: The wind wave regime of Tallinn Bay, Gulf of Finland, is analysed with the use of a simplified method of long-term computations of wave fields based on a high-resolution nested WAM model and Kalbadagrund (1991-2000) wind data. The distributions of probabilities for wave heights, annual and seasonal mean wave heights, density of wave energy and its flux (wave power), and 1-year return wave heights as well as the wave field properties in extreme storms are computed. The mainland and surrounding islands together with numerous shallow areas shelter the bay from waves coming from the dominating strong wind directions. The average wave properties exhibit a significant seasonal and spatial variability. The highest waves occur in the vicinity of the Tallinn-Helsinki ship lane where the significant wave height exceeds 2 m each year and may reach 4 m in extreme NNW storms.

85 citations

Journal ArticleDOI
TL;DR: In this article, a new type of radial flow self-rectifying turbine is described, where the rotor blades are surrounded by a pair of radial-flow guide-vane rows.

85 citations

Journal ArticleDOI
Toshiaki Setoguchi1, S. Santhakumar, Manabu Takao, T.H. Kim1, Kenji Kaneko1 
TL;DR: In this paper, the rotor blade pitch was set asymmetrically at a positive pitch to achieve a higher mean efficiency in a wave cycle and the performance characteristics of a turbine with different blade setting angles in steady flow were found by experimentation.

84 citations

Journal ArticleDOI
TL;DR: In this paper, a physical interpretation of the laws governing wave power absorption by Oyster is presented, and the main goals of this work are to provide a simple yet accurate interpretation of Oyster and to emphasise why some other, more established, mathematical theories cannot be expected to accurately describe its behaviour.
Abstract: Oyster ® is a surface-piercing flap-type device designed to harvest wave energy in the nearshore environment. Established mathematical theories of wave energy conversion, such as 3D point-absorber and 2D terminator theory, are inadequate to accurately describe the behaviour of Oyster, historically resulting in distorted conclusions regarding the potential of such a concept to harness the power of ocean waves. Accurately reproducing the dynamics of Oyster requires the introduction of a new reference mathematical model, the “flap-type absorber”. A flap-type absorber is a large thin device which extracts energy by pitching about a horizontal axis parallel to the ocean bottom. This paper unravels the mathematics of Oyster as a flap-type absorber. The main goals of this work are to provide a simple–yet accurate–physical interpretation of the laws governing the mechanism of wave power absorption by Oyster and to emphasise why some other, more established, mathematical theories cannot be expected to accurately describe its behaviour.

84 citations

Journal ArticleDOI
TL;DR: In this article, an experimental investigation of the aerodynamic performance of a high-solidity Wells turbine for a wave power plant is presented, and the results show that the presence of guide vanes can provide a remarkable increase in turbine efficiency.
Abstract: The paper describes an experimental investigation, and presents the results of the aerodynamic performance of a high-solidity Wells turbine for a wave power plant. A monoplane turbine of 0.6 m rotor diameter with guide vanes was built and tested. The tests were conducted in unidirectional steady airflow. Measurements taken include flow rate, pressure drop, torque, and rotational speed, as well as velocity and pressure distributions. Experimental results show that the presence of guide vanes can provide a remarkable increase in turbine efficiency.

84 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202349
2022117
2021111
2020142
2019137
2018138