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Multi-DOF WEC Performance in Variable Bathymetry Regions Using a Hybrid 3D BEM and Optimization

Author

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  • Markos Bonovas

    (School of Naval Architecture and Marine Engineering, National Technical University of Athens, 15780 Athens, Greece)

  • Kostas Belibassakis

    (School of Naval Architecture and Marine Engineering, National Technical University of Athens, 15780 Athens, Greece)

  • Eugen Rusu

    (Department of Mechanical Engineering, University Dunarea de Jos of Galati, 800008 Galați, Romania)

Abstract

In the present work a hybrid boundary element method is used, in conjunction with a coupled mode model and perfectly matched layer model, for obtaining the solution of the propagation/diffraction/radiation problems of floating bodies in variable bathymetry regions. The implemented methodology is free of mild-slope assumptions and restrictions. The present work extends previous results concerning heaving floaters over a region of general bottom topography in the case of generally shaped wave energy converters (WECs) operating in multiple degrees of freedom. Numerical results concerning the details of the wave field and the power output are presented, and the effects of WEC shape on the optimization of power extraction are discussed. It is demonstrated that consideration of heave in combination with pitch oscillation modes leads to a possible increase of the WEC performance.

Suggested Citation

  • Markos Bonovas & Kostas Belibassakis & Eugen Rusu, 2019. "Multi-DOF WEC Performance in Variable Bathymetry Regions Using a Hybrid 3D BEM and Optimization," Energies, MDPI, vol. 12(11), pages 1-18, June.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:11:p:2108-:d:236460
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    References listed on IDEAS

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    1. Gael Verao Fernández & Vasiliki Stratigaki & Peter Troch, 2019. "Irregular Wave Validation of a Coupling Methodology for Numerical Modelling of Near and Far Field Effects of Wave Energy Converter Arrays," Energies, MDPI, vol. 12(3), pages 1-19, February.
    2. Vincenzo Franzitta & Domenico Curto & Davide Rao & Alessia Viola, 2016. "Hydrogen Production from Sea Wave for Alternative Energy Vehicles for Public Transport in Trapani (Italy)," Energies, MDPI, vol. 9(10), pages 1-17, October.
    3. Philip Balitsky & Nicolas Quartier & Gael Verao Fernandez & Vasiliki Stratigaki & Peter Troch, 2018. "Analyzing the Near-Field Effects and the Power Production of an Array of Heaving Cylindrical WECs and OSWECs Using a Coupled Hydrodynamic-PTO Model," Energies, MDPI, vol. 11(12), pages 1-32, December.
    4. Gael Verao Fernandez & Philip Balitsky & Vasiliki Stratigaki & Peter Troch, 2018. "Coupling Methodology for Studying the Far Field Effects of Wave Energy Converter Arrays over a Varying Bathymetry," Energies, MDPI, vol. 11(11), pages 1-24, October.
    5. Kostas Belibassakis & Markos Bonovas & Eugen Rusu, 2018. "A Novel Method for Estimating Wave Energy Converter Performance in Variable Bathymetry Regions and Applications," Energies, MDPI, vol. 11(8), pages 1-16, August.
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    Cited by:

    1. Zhang, Yongxing & Huang, Zhicong & Zou, Bowei & Bian, Jing, 2023. "Conceptual design and analysis for a novel parallel configuration-type wave energy converter," Renewable Energy, Elsevier, vol. 208(C), pages 627-644.
    2. Alexandros Magkouris & Kostas Belibassakis & Eugen Rusu, 2021. "Hydrodynamic Analysis of Twin-Hull Structures Supporting Floating PV Systems in Offshore and Coastal Regions," Energies, MDPI, vol. 14(18), pages 1-19, September.
    3. Kostas Belibassakis & Alexandros Magkouris & Eugen Rusu, 2020. "A BEM for the Hydrodynamic Analysis of Oscillating Water Column Systems in Variable Bathymetry," Energies, MDPI, vol. 13(13), pages 1-24, July.
    4. Dimitrios N. Konispoliatis & Spyridon A. Mavrakos, 2020. "Wave Power Absorption by Arrays of Wave Energy Converters in Front of a Vertical Breakwater: A Theoretical Study," Energies, MDPI, vol. 13(8), pages 1-25, April.

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