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Hydrodynamic Performance of a Pitching Float Wave Energy Converter

Author

Listed:
  • Yong Ma

    (School of Marine Engineering and Technology, Sun Yat-sen University, Guangzhou 510275, China
    Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai 519000, China)

  • Shan Ai

    (School of Marine Engineering and Technology, Sun Yat-sen University, Guangzhou 510275, China)

  • Lele Yang

    (School of Marine Engineering and Technology, Sun Yat-sen University, Guangzhou 510275, China
    Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai 519000, China)

  • Aiming Zhang

    (School of Marine Engineering and Technology, Sun Yat-sen University, Guangzhou 510275, China)

  • Sen Liu

    (School of Marine Engineering and Technology, Sun Yat-sen University, Guangzhou 510275, China)

  • Binghao Zhou

    (College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China)

Abstract

This study analyzes the hydrodynamic performance and application of a pitching float-type wave energy conversion device under complex sea conditions in the South China Sea. Potential flow theory and ANSYS-AQWA software are used to establish a method for analyzing hydrodynamic performance in both time and frequency domains, as well as the various factors that influence hydrodynamic performance. The frequency domain characteristics of the conversion device are explored, as well as the time-domain characteristics when exposed to regular and irregular waves. The results show that the frequency domain of hydrodynamic performance conforms to the requirements of an offshore mobile platform. A mooring point that is closer to the center of mass leads to improved stability of the conversion device. The angle arrangement of the anchor-chain mooring method fully conforms to safety requirements. When the wave direction is 45°, the conversion device is highly stressed and its movement is the most strenuous; however, the device can operate safely and stably under all working conditions. These results provide a significant reference for expanding the wave-energy capture range and the hydrodynamic performance of floating wave-energy conversion devices.

Suggested Citation

  • Yong Ma & Shan Ai & Lele Yang & Aiming Zhang & Sen Liu & Binghao Zhou, 2020. "Hydrodynamic Performance of a Pitching Float Wave Energy Converter," Energies, MDPI, vol. 13(7), pages 1-27, April.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:7:p:1801-:d:342931
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    References listed on IDEAS

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