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Energies 2018, 11(8), 2092; https://doi.org/10.3390/en11082092

A Novel Method for Estimating Wave Energy Converter Performance in Variable Bathymetry Regions and Applications

1
School of Naval Architecture & Marine Engineering, National Technical University of Athens, 15780 Athens, Greece
2
Department of Mechanical Engineering, University Dunarea de Jos of Galati, 800008 Galati, Romania
*
Author to whom correspondence should be addressed.
Received: 24 July 2018 / Revised: 3 August 2018 / Accepted: 10 August 2018 / Published: 11 August 2018
(This article belongs to the Special Issue Offshore Renewable Energy: Ocean Waves, Tides and Offshore Wind)
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Abstract

A numerical model is presented for the estimation of Wave Energy Converter (WEC) performance in variable bathymetry regions, taking into account the interaction of the floating units with the bottom topography. The proposed method is based on a coupled-mode model for the propagation of the water waves over the general bottom topography, in combination with a Boundary Element Method for the treatment of the diffraction/radiation problems and the evaluation of the flow details on the local scale of the energy absorbers. An important feature of the present method is that it is free of mild bottom slope assumptions and restrictions and it is able to resolve the 3D wave field all over the water column, in variable bathymetry regions including the interactions of floating bodies of general shape. Numerical results are presented concerning the wave field and the power output of a single device in inhomogeneous environment, focusing on the effect of the shape of the floater. Extensions of the method to treat the WEC arrays in variable bathymetry regions are also presented and discussed. View Full-Text
Keywords: renewable energy; marine environment; wave energy converters; variable bathymetry effects; arrays renewable energy; marine environment; wave energy converters; variable bathymetry effects; arrays
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Belibassakis, K.; Bonovas, M.; Rusu, E. A Novel Method for Estimating Wave Energy Converter Performance in Variable Bathymetry Regions and Applications. Energies 2018, 11, 2092.

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