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A BEM for the Hydrodynamic Analysis of Oscillating Water Column Systems in Variable Bathymetry

Author

Listed:
  • Kostas Belibassakis

    (School of Naval Architecture & Marine Engineering, National Technical University of Athens, Heroon Polytechniou 9, 15780 Zografou, Greece)

  • Alexandros Magkouris

    (School of Naval Architecture & Marine Engineering, National Technical University of Athens, Heroon Polytechniou 9, 15780 Zografou, Greece)

  • Eugen Rusu

    (Department of Mechanical Engineering, University Dunarea de Jos of Galati, Strada Domnească 47, 800008 Galați, Romania)

Abstract

In this work, a novel Boundary Element Method (BEM) is developed and applied to the investigation of the performance of Oscillating Water Column (OWC) systems, taking into account the interaction of the incident wave field with the bottom topography. The modelling includes the effect of additional upwave walls and barriers used to modify the resonance characteristics of the device and improve its performance as the U-OWC configuration. Numerical results illustrating the effects of depth variation in conjunction with other parameters—such as chamber dimensions as well as the parameters associated with the turbine and power take-off system—on the device performance are presented and discussed. Finally, a case study is presented regarding the potential installation of an OWC in a selected port site in the Black Sea, characterized by a good wave energy potential, on the coast of Romania.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:13:p:3403-:d:379406
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    References listed on IDEAS

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    1. Falcão, António F.O. & Henriques, João C.C., 2016. "Oscillating-water-column wave energy converters and air turbines: A review," Renewable Energy, Elsevier, vol. 85(C), pages 1391-1424.
    2. Falcão, A.F.O. & Gato, L.M.C. & Nunes, E.P.A.S., 2013. "A novel radial self-rectifying air turbine for use in wave energy converters. Part 2. Results from model testing," Renewable Energy, Elsevier, vol. 53(C), pages 159-164.
    3. Rusu, Eugen, 2019. "A 30-year projection of the future wind energy resources in the coastal environment of the Black Sea," Renewable Energy, Elsevier, vol. 139(C), pages 228-234.
    4. Rusu, Liliana, 2019. "The wave and wind power potential in the western Black Sea," Renewable Energy, Elsevier, vol. 139(C), pages 1146-1158.
    5. Florin Onea & Sorin Ciortan & Eugen Rusu, 2017. "Assessment of the potential for developing combined wind-wave projects in the European nearshore," Energy & Environment, , vol. 28(5-6), pages 580-597, September.
    6. Liliana Rusu, 2015. "Assessment of the Wave Energy in the Black Sea Based on a 15-Year Hindcast with Data Assimilation," Energies, MDPI, vol. 8(9), pages 1-19, September.
    7. Elhanafi, Ahmed & Fleming, Alan & Macfarlane, Gregor & Leong, Zhi, 2016. "Numerical energy balance analysis for an onshore oscillating water column–wave energy converter," Energy, Elsevier, vol. 116(P1), pages 539-557.
    8. Falcão, A.F.O. & Gato, L.M.C. & Nunes, E.P.A.S., 2013. "A novel radial self-rectifying air turbine for use in wave energy converters," Renewable Energy, Elsevier, vol. 50(C), pages 289-298.
    9. 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.
    10. 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.
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    Cited by:

    1. Eugen Rusu, 2021. "Special Issue “Advances and Challenges in Harvesting Ocean Energy”," Energies, MDPI, vol. 14(15), pages 1-4, July.
    2. George Lavidas & John K. Kaldellis, 2020. "Assessing Renewable Resources at the Saronikos Gulf for the Development of Multi-Generation Renewable Systems," Sustainability, MDPI, vol. 12(21), pages 1-22, November.
    3. Dimitrios N. Konispoliatis, 2023. "The Effect of Hydrodynamics on the Power Efficiency of a Toroidal Oscillating Water Column Device," Sustainability, MDPI, vol. 15(16), pages 1-29, August.

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