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Numerical simulation on hydrodynamic performance of a dual-oscillating-water-column wave energy converter array
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Yi YANG1, Tao-lue YANG1, Xin-ran GUO1, Zhi-gang LIU1, Hong-xing WANG1, Wen CHEN1, Shi LIU1, Yu ZHOU2
Journal of Ship Mechanics | 2025, 29(4) : 585 - 596
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Journal of Ship Mechanics | 2025, 29(4): 585-596
• Hydrodynamics •
Numerical simulation on hydrodynamic performance of a dual-oscillating-water-column wave energy converter array
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Yi YANG1, Tao-lue YANG1, Xin-ran GUO1, Zhi-gang LIU1, Hong-xing WANG1, Wen CHEN1, Shi LIU1, Yu ZHOU2
Affiliations
  • 1.China Southern Power Grid Technology Co., Ltd., Guangzhou 510080. China
  • 2.State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
Published: 2025-04-20 doi: 10.3969/j.issn.1007-7294.2025.04.007
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Oscillating-water-column (OWC) wave energy converters (WECs) have attracted worldwide attention because of their simple structures and easy maintenance. However, they still face the issues of low energy conversion efficiency and narrow effective frequency bandwidth. A numerical simulation of the hydrodynamic performance of an offshore stationary dual-OWC array was conducted. Based on the potential flow theory, a nonlinear aerodynamic model considering air-liquid coupling was constructed by introducing aerodynamic and artificial damping on the first and second-order free surface boundaries of the OWC chamber. A set of physical experiments were carried out to validate the numerical model, and a good agreement between the experimental and numerical results was achieved. The results show that the chamber resonant frequency shifts due to the multiple diffraction waves between component devices. Appropriate array arrangement helps to improve the relative capture width and effective frequency bandwidth of the OWC wave energy devices, with a maximum increase of 61.7% and 24.5%, respectively.

offshore OWC WEC  /  array arrangement  /  relative capture width  /  HOBEM  /  physical experiment
Yi YANG, Tao-lue YANG, Xin-ran GUO, Zhi-gang LIU, Hong-xing WANG, Wen CHEN, Shi LIU, Yu ZHOU. Numerical simulation on hydrodynamic performance of a dual-oscillating-water-column wave energy converter array[J]. Journal of Ship Mechanics, 2025 , 29 (4) : 585 -596 . DOI: 10.3969/j.issn.1007-7294.2025.04.007
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Year 2025 volume 29 Issue 4
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Article Info
doi: 10.3969/j.issn.1007-7294.2025.04.007
  • Receive Date：2024-10-22
  • Online Date：2026-03-24
  • Published：2025-04-20
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  • Received：2024-10-22
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Affiliations
    1.China Southern Power Grid Technology Co., Ltd., Guangzhou 510080. China
    2.State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
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