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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TL;DR: In this paper, an intercomparison of two wind-wave models against buoy data in the North Atlantic and the Mediterranean Sea was performed to select the most suitable one for the construction of an Atlas of the wave energy resource in European waters.
Abstract: In the last two decades the performance of numerical wind-wave models has improved considerably. Several models have been routinely producing good quality wave estimates globally since the mid-1980s. The verifications of wind-wave models have mainly focused on the evaluation of the error of the significant wave height H{sub s} estimates. However, for wave energy purposes, the main parameters to be assessed are the wave power P{sub w} and the mean (energy) period T{sub e}. Since P{sub w} is proportional to H{sub s}{sup 2}T{sub e}, its expected error is much larger than for the single-wave parameters. This paper summarizes the intercomparison of two wind-wave models against buoy data in the North Atlantic and the Mediterranean Sea to select the most suitable one for the construction of an Atlas of the wave energy resource in European waters. A full verification in the two basins of the selected model--the WAM model, implemented in the routine operation of the European Centre for Medium-Range Weather Forecasts--was then performed against buoy and satellite altimeter data. It was found that the WAM model accuracy is very good for offshore locations in the North Atlantic; but for the Mediterranean Sea the results are much less accurate, probably duemore » to a lower quality of the input wind fields.« less
11 citations
01 Jan 2015
TL;DR: In this article, the authors present details on the design and operation of the Bombora Wave Power (BWP) concept and outlines current research activities, including both physical scale model experiments and numerical techniques, including computational fluid dynamics (CFD) to investigate the behaviour of the device as an energy generator, provider of coastal protection and/or creator of surf breaks.
Abstract: New methodologies and techniques are necessary for developers of ocean wave energy converters (WEC) to overcome barriers to the development of their technology and contribute to making them competitive. One aspect of particular importance to WEC performance is associated with the water/energy conversion interface. Depending on the device the interface may be either a fluid, solid or flexible element, but will always involve a moving boundary of some type. The Australian company Bombora Wave Power (Bombora) are developing a globally unique and innovative WEC technology that uses a large flexible membrane as the conversion interface. Another feature of their patented concept is the ability to readily survive the worst possible storm conditions, potentially giving the concept huge operational and cost advantages over most existing WEC technologies. This paper presents details on the design and operation of the Bombora concept and outlines current research activities. This includes both physical scale model experiments and numerical techniques, including computational fluid dynamics (CFD) to investigate the behaviour of the device as an energy generator, provider of coastal protection and/or creator of surf breaks. Details of the proof-of-concept experimental programs performed in the shallow water wave basin at the Australian Maritime College (AMC), University of Tasmania are presented and discussed, including the development of a novel underwater photogrammetry technique for quantifying the deformation of the flexible membrane. Several other complete and planned activities to further develop this novel technology are also discussed.
11 citations
TL;DR: In this paper, an analytical 3D model developed within the framework of linear theory, a numerical model based on the non-linear shallow water equations and empirical formulas was used to provide an answer to the question of whether an oscillating wave surge converter (OWSC) could withstand the force of an incoming tsunami.
11 citations
TL;DR: In this paper, the authors used the sea state model TOMAWAC to simulate 18 years of wave conditions on the South-Southeastern Brazilian Shelf (SSBS) which were later converted to a single year, representative of the Brazilian wave climate.
Abstract: The focus on renewable energy sources on the last few decades has pushed studies on wave energy availability. In this sense, this study aims to determine annual characteristics of the wave climate on the South-Southeastern Brazilian Shelf (SSBS) to improve the comprehension of the Brazilian wave climate, as well as, to give an insight on the more energetic coastal spots in this area. To accomplish that, the sea state model TOMAWAC was used to simulate 18 years of wave conditions on the SSBS which were later converted to a single year, representative of the Brazilian wave climate. The results showed a strong annual pattern of steadier sea state in summer and spring and a more agitated one in autumn and winter. The results also showed that in the Santa Marta cape, the seasonal wave power oscillates between 8 and 11 kW/m, and at Ilhabela, between 7 and 11 kW/m. At the Farol island, on the other hand, the seasonal wave power varies around 11 and 19 kW/m, yielding much more energy but, at the cost of an extremely higher variation throughout the year.
11 citations