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R. Gayathri, Jen-Yi Chang, Chia-Cheng Tsai and Tai-Wen Hsu
An oscillating water column (OWC) is designed for the extraction and conversion of wave energy into usable electrical power, rather than being a standalone renewable energy source. This review paper presents a comprehensive analysis of the mathematical m...
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Dimitrios N. Konispoliatis and Spyridon A. Mavrakos
In the present study, the hydrodynamic efficiency of a cylindrical wave energy converter (WEC) of vertical symmetry axis and arranged in front of a reflecting orthogonal breakwater is explored. The idea is based on exploiting the anticipated amplificatio...
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Dimitrios N. Konispoliatis
The present study explores the performance of an array of cylindrical oscillating water column (OWC) devices, having a vertical symmetry axis, placed in front of a bottom seated, surface piercing, vertical breakwater. The main goal of this study is the i...
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Rafael Pereira Maciel, Phelype Haron Oleinik, Elizaldo Domingues Dos Santos, Luiz Alberto Oliveira Rocha, Bianca Neves Machado, Mateus das Neves Gomes and Liércio André Isoldi
In this work, we conducted a numerical analysis of an oscillating water column (OWC) wave energy converter (WEC) device. The main objective of this research was to conduct a geometric evaluation of the device by defining an optimal configuration that max...
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Amanda Lopes dos Santos, Cristiano Fragassa, Andrei Luís Garcia Santos, Rodrigo Spotorno Vieira, Luiz Alberto Oliveira Rocha, José Manuel Paixão Conde, Liércio André Isoldi and Elizaldo Domingues dos Santos
The present work aims to develop a computational model investigating turbulent flows in a problem that simulates an oscillating water column device (OWC) considering a Savonius turbine in the air duct region. Incompressible, two-dimensional, unsteady, an...
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Theofano I. Koutrouveli, Enrico Di Lauro, Luciana das Neves, Tomás Calheiros-Cabral, Paulo Rosa-Santos and Francisco Taveira-Pinto
Despite the efforts of developers, investors and scientific community, the successful development of a competitive wave energy industry is proving elusive. One of the most important barriers against wave energy conversion is the efficiency of the devices...
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Rafael P. Maciel, Cristiano Fragassa, Bianca N. Machado, Luiz A. O. Rocha, Elizaldo D. dos Santos, Mateus N. Gomes and Liércio A. Isoldi
This work presents a two-dimensional numerical analysis of a wave channel and a oscillating water column (OWC) device. The main goal is to validate a methodology which uses transient velocity data as a means to impose velocity boundary condition for the ...
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Orrin Lancaster, Remo Cossu, Craig Heatherington, Scott Hunter and Tom E. Baldock
This study provides the first ever published measurements of scour and morphological change around an Oscillating Water Column (OWC) Wave Energy Converter (WEC) device at a real-world site, with the intention of informing future designs to reduce costs o...
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Alana Pols, Eric Gubesch, Nagi Abdussamie, Irene Penesis and Christopher Chin
This investigation focuses on the modelling of a floating oscillating water column (FOWC) wave energy converter with a numerical code (ANSYS AQWA) based on potential flow theory. Free-floating motions predicted by the numerical model were validated again...
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Remo Cossu, Craig Heatherington, Irene Penesis, Ryan Beecroft and Scott Hunter
We present findings from a geotechnical survey for a gravity-based Wave Energy Converter (WEC) to be installed in King Island, Tasmania. The goal of this work was to assess the deployment location for a 200 kW Oscillating Water Column (OWC) and to identi...
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Pierre Benreguig, Miguel Vicente, Adrian Dunne and Jimmy Murphy
The Tupperwave device is a wave energy converter based on the Oscillating Water Column (OWC) concept. Unlike conventional OWC devices, which are opened to the atmosphere, the Tupperwave device works in closed-circuit and uses non-return valves and accumu...
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Luca Martinelli, Paolo Pezzutto and Piero Ruol
This note presents the Seabreath wave energy converter, basically a multi-chamber floating oscillating water column device, and the lumped model used to size its chambers, the ducts and the turbine. The model is based on extensive testing carried out in...
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Nerea Portillo Juan, Vicente Negro Valdecantos, M. Dolores Esteban and José Santos López Gutiérrez
Wave energy is one of the most powerful sources of energy on our planet, but its exploitation is difficult. Much current research on renewable energy is focused on how to harness ocean energy. However, wave energy converter (WEC) technology is still imma...
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Giuseppe Giorgi, Rui P. F. Gomes, Giovanni Bracco and Giuliana Mattiazzo
Although it is widely accepted that accurate modeling of wave energy converters is essential for effective and reliable design, it is often challenging to define an accurate model which is also fast enough to investigate the design space or to perform ex...
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Pierre Benreguig and Jimmy Murphy
Air compressibility effects play an important role in large-scale Oscillating Water Column (OWC) wave energy converters. Air compressibility is however not scalable with Froude similarity law. An existing scaling method enables correctly reproducing the ...
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Vladimir Krivtsov and Brian Linfoot
This paper describes the physical model testing of an array of wave energy devices undertaken in the NTNU (Norwegian University of Science and Technology) Trondheim basin between 8 and 20 October 2008 funded under the EU Hydralabs III initiative, and pro...
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