Journal ArticleDOI
A theory for wave-power absorption by oscillating bodies
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In this paper, a theory for predicting the absorption of the power in an incident sinusoidal wave train by means of a damped, oscillating, partly or completely submerged body is given.Abstract:
A theory is given for predicting the absorption of the power in an incident sinusoidal wave train by means of a damped, oscillating, partly or completely submerged body. General expressions for the efficiency of wave absorption when the body oscillates in one or, in some cases, two modes are given. It is shown that 100% efficiency is possible in some cases. Curves describing the variation of efficiency and amplitude of the body with wavenumber for various bodies are presented.read more
Citations
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Wave energy utilization: A review of the technologies
TL;DR: In this article, the development of wave energy utilization since the 1970s is discussed, with a focus on the characterization of the wave energy resource; theoretical background, with especial relevance to hydrodynamics of wave absorption and control; how a large range of devices kept being proposed and studied, and how such devices can be organized into classes; the conception, design, model-testing, construction and deployment into real sea of prototypes.
Journal ArticleDOI
A review of wave-energy extraction
TL;DR: In this paper, wave spectrum parameters related to transport, distribution and variability of wave energy in the sea are explained. But, the authors do not consider the effect of wave interference on the performance of wave-energy converters.
Journal ArticleDOI
Ocean waves and oscillating systems : linear interactions including wave-energy extraction
TL;DR: In this paper, the authors describe the interaction between oscillations and waves, and describe the absorption of wave energy by oscillating bodies by wave-energy absorption by oscillated bodies, as well as wave interactions with oscillating water columns.
Journal ArticleDOI
Oscillating-water-column wave energy converters and air turbines: A review
TL;DR: A comprehensive review of wave energy converters and air turbines can be found in this paper, together with a survey of theoretical, numerical and experimental modelling techniques of OWC converters.
Journal ArticleDOI
Wave-power absorption by systems of oscillating surface pressure distributions
TL;DR: In this article, the efficiency of energy absorption of a system of uniform oscillatory surface pressure distributions was derived based on linear water-wave theory and the results showed the close analogies which exist with theories for absorbing oscillatory rigid bodies and a number of new reciprocal relations for pressure distributions.
References
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Journal ArticleDOI
A resonant point absorber of ocean-wave power
K. Budar,Johannes Falnes +1 more
TL;DR: In this article, large scale systems have been proposed for absorbing and utilising the energy carried by ocean waves, which are called point absorbers and linear absorbers, respectively, when the system is made as a straight construction, at least a few wavelengths long.
Journal ArticleDOI
First- and second order forces on a cylinder submerged under a free surface
TL;DR: In this article, the linearized potential problem of water waves passing over a submerged circular cylinder was solved and it was shown that the transmitted waves have the same amplitude as the incident waves, but they suffer a phase shift in passing the cylinder.
Journal ArticleDOI
Waves due to a floating sphere making periodic heaving oscillations
TL;DR: In this article, a discussion of the fluid motion due to a sphere, floating half-immersed in water, which is made to describe small heaving oscillations is given, and the velocity potential is obtained as a series for which the unknown coefficients are given by an infinite set of equations.
Journal ArticleDOI
On the Kramers-Kronig relations for ship motions1
Jack Kotik,Visvaldis Mangulis +1 more