Topic
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.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, a single-body point absorber system is analyzed to enhance the power absorption performance of a single floating body coupled to a direct-drive power takeoff system placed on the seabed.
Abstract: In this paper, a single-body point absorber system is analyzed to enhance its power absorption performance. The wave energy converter consists of a single floating body coupled to a direct-drive power takeoff system placed on the seabed. The geometry of a cylindrical buoy with large draft is modified, obtaining a particular geometry that is used to enhance the power absorption of the wave converter at a given site and at a finite depth. A numerical analysis tool (NEMOH) is used to obtain the buoy's frequency-dependent hydrostatic parameters; in addition, the buoy's dimensions are parameterized to tune the natural frequency of the oscillating system toward the frequency of dominant incident waves, thus enhancing wave power absorption for a specific wave frequency range. Furthermore, the damping influence of the power takeoff system on the performance of the wave energy converter is also considered.
9 citations
Patent•
25 Apr 2013
TL;DR: In this paper, a wave power generator is provided to be easily installed in a simple structure and to be easy and economically maintained, where a power transmission unit comprises an outer frame, a buoyancy body, and a driving unit.
Abstract: PURPOSE: A wave power generator is provided to be easily installed in a simple structure and to be easily and economically maintained. CONSTITUTION: A wave power generator(100) comprises a power transmission unit(A) and a generation unit(B). The power transmission unit comprises an outer frame(10), a buoyancy body(20), and a driving unit. The outer frame fixes the buoyancy body by being installed in a place capable of using wave power. The buoyancy body is supported at the outer frame and vertically moves with wave. The driving unit is installed at an upper surface of the buoyancy body and generates rotatory power according to vertical movement of the buoyancy body. The generation unit generates power by receiving the rotatory power of a first rotary shaft and a second rotary shaft in the driving unit.
9 citations
TL;DR: In this paper, the propagation of an Alfven wave packet through a medium containing time-dependent random density fluctuations is considered, and the results are applied to the solar corona and interstellar medium.
Abstract: The propagation of an Alfven wave packet through a medium containing time-dependent random density fluctuations is considered. The Alfven wave interaction with these density irregularities causes the transfer of wave power to both shear (Alfvenic) and compressive (magnetosonic) disturbances. The latter are dissipated and heat the plasma. The Alfven wave decay rate is computed in the limit of short-wavelength density fluctuations, the results are applied to the solar corona and interstellar medium.
9 citations
TL;DR: In this article, a generic two-fluid (water/air) numerical model has been developed and applied for the simulation of the complex fluid flow around a wave driven rotating vane near a shoreline in the context of a novel wave energy device OWSC (Oscillating wave surge converter).
Abstract: A generic two-fluid (water/air) numerical model has been developed and applied for the simulation of the complex fluid flow around a wave driven rotating vane near a shoreline in the context of a novel wave energy device OWSC (Oscillating wave surge converter). The underlying scheme is based on the solution of the incompressible Euler equations for a variable density fluid system for automatically capturing the interface between water and air and the Cartesian cut cell method for tracking moving solid boundaries on a background stationary Cartesian grid. The results from the present study indicate that the method is an effective tool for modeling a wide range of free surface flow problems.
9 citations
TL;DR: In this article , a novel integrated system composed of an offshore heaving OWC device and a floating stationary breakwater with a certain length of gap between each other is proposed under the framework of potential flow theory, corresponding theoretical model is established and solved by decomposing the boundary-value problems into one wave scattering component and two radiation components.
9 citations