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Experimental Update of the Overtopping Model Used for the Wave Dragon Wave Energy Converter

Author

Listed:
  • Stefano Parmeggiani

    (Wave Dragon Ltd., 869 High Road, London N12 8QA, UK
    Department of Civil Engineering, Aalborg University, Sohngaardsholmsvej 57, DK-9000 Aalborg, Denmark)

  • Jens Peter Kofoed

    (Department of Civil Engineering, Aalborg University, Sohngaardsholmsvej 57, DK-9000 Aalborg, Denmark)

  • Erik Friis-Madsen

    (Wave Dragon Ltd., 869 High Road, London N12 8QA, UK)

Abstract

An overtopping model specifically suited for Wave Dragon is needed in order to improve the reliability of its performance estimates. The model shall be comprehensive of all relevant physical processes that affect overtopping and flexible to adapt to any local conditions and device configuration. An experimental investigation is carried out to update an existing formulation suited for 2D draft-limited, low-crested structures, in order to include the effects on the overtopping flow of the wave steepness, the 3D geometry of Wave Dragon, the wing reflectors, the device motions and the non-rigid connection between platform and reflectors. The study is carried out in four phases, each of them specifically targeted at quantifying one of these effects through a sensitivity analysis and at modeling it through custom-made parameters. These are depending on features of the wave or the device configuration, all of which can be measured in real-time. Instead of using new fitting coefficients, this approach allows a broader applicability of the model beyond the Wave Dragon case, to any overtopping WEC or structure within the range of tested conditions. Predictions reliability of overtopping over Wave Dragon increased, as the updated model allows improved accuracy and precision respect to the former version.

Suggested Citation

  • Stefano Parmeggiani & Jens Peter Kofoed & Erik Friis-Madsen, 2013. "Experimental Update of the Overtopping Model Used for the Wave Dragon Wave Energy Converter," Energies, MDPI, vol. 6(4), pages 1-32, April.
    • Handle: RePEc:gam:jeners:v:6:y:2013:i:4:p:1961-1992:d:24762
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    References listed on IDEAS

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    1. anonymous, 2005. "Focus on Authors," Marketing Science, INFORMS, vol. 24(3), pages 518-522.
    2. Stefano Parmeggiani & Jens Peter Kofoed & Erik Friis-Madsen, 2013. "Experimental Study Related to the Mooring Design for the 1.5 MW Wave Dragon WEC Demonstrator at DanWEC," Energies, MDPI, vol. 6(4), pages 1-24, April.
    3. Kofoed, Jens Peter & Frigaard, Peter & Friis-Madsen, Erik & Sørensen, Hans Chr., 2006. "Prototype testing of the wave energy converter wave dragon," Renewable Energy, Elsevier, vol. 31(2), pages 181-189.
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    Cited by:

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    2. Zhao, Xuanlie & Zhang, Yang & Li, Mingwei & Johanning, Lars, 2021. "Experimental and analytical investigation on hydrodynamic performance of the comb-type breakwater-wave energy converter system with a flange," Renewable Energy, Elsevier, vol. 172(C), pages 392-407.
    3. Liu, Zhen & Shi, Hongda & Cui, Ying & Kim, Kilwon, 2017. "Experimental study on overtopping performance of a circular ramp wave energy converter," Renewable Energy, Elsevier, vol. 104(C), pages 163-176.
    4. Zhao, Xuanlie & Zhang, Yang & Li, Mingwei & Johanning, Lars, 2020. "Hydrodynamic performance of a Comb-Type Breakwater-WEC system: An analytical study," Renewable Energy, Elsevier, vol. 159(C), pages 33-49.

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