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.
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01 Jan 2007
TL;DR: In this article, the MIKE 21 suite wave models, Spectral wave and Boussinesq wave, were used for the estimation of various phase averaged wave parameters for the Orkney Islands.
Abstract: This paper presents the results of a study carried out to determine the change in wave climate around an array of hypothetical wave devices. The main objective of this work is to investigate the change in wave height in the upstream and downstream of the devices for different levels of wave absorption. This is achieved by modeling the wave devices as porous structures with different porosity levels, with the inclusion of partial reflection and partial transmission. The MIKE 21 suite wave models, (i) Spectral wave and (ii) Boussinesq wave are used for this purpose. The former wave model is employed for the estimation of various phase averaged wave parameters for the Orkney Islands. These wave parameters are then used as input to the Boussinesq model to study wave-device array interactions. The results are presented in the form of wave disturbance coefficients defined as a ratio of the significant wave height at a particular location relative to the incoming or input significant wave height. This study illustrates how the variations in wave absorption by the devices affect the degree of wave reflection and transmission around the devices.
60 citations
TL;DR: In this paper, a 31-year simulation of wave characteristics using the third generation spectral WAVEWATCH-III model was assessed and analyzed based on a 3D wave model for the South China Sea and nine sites representing different sub-regions were selected for further analysis on eligibility of wave farming.
60 citations
TL;DR: In this paper, the authors considered a periodic array of small buoys with similarly small separation compared to the typical wavelength and derived the equations governing the macroscale behavior of the entire array.
Abstract: The majority of existing single-unit devices for extracting power from sea waves relies on resonance at the peak frequency of the incident wave spectrum. Such designs usually call for structural dimensions not too small compared to a typical wavelength and yield high efficiency only within a limited frequency band. A recent innovation in Norway departs from this norm by gathering many small buoys in a compact array. Each buoy is too small to be resonated in typical sea conditions. In this article a theoretical study is performed to evaluate this new design. Within the framework of linearization, we consider a periodic array of small buoys with similarly small separation compared to the typical wavelength. The method of homogenization (multiple scales) is used to derive the equations governing the macroscale behaviour of the entire array. These equations are then applied to energy extraction by an infinite strip of buoys, and by a circular array. In the latter case, advantages are found when compared to a single buoy of equal volume.
60 citations
TL;DR: In this article, an analysis of a hemispherical buoy in regular and irregular waves and a tight mooring cable is presented, preceded by a simpler frequency-domain approach.
59 citations
TL;DR: In this paper, the authors presented an assessment of wave energy resources in the Red Sea using numerical modelling, and the wave conditions were simulated for 1979 to 2010 using a third generation ocean wave model, WAVE-III by forcing with CFSR winds.
59 citations