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This paper investigates the wave energy conversion efficiency and hydrodynamic characteristics of an integrated slope-type wave energy converter through numerical simulation methods. The numerical simulations are based on the open-source computational fluid dynamics (CFD) platform OpenFOAM, utilizing the waves2Foam wave generation tool to create and dissipate waves. Additionally, the Volume of Fluid (VOF) method is employed to capture the gas-liquid interface. To enhance computational efficiency, an artificial source term (artificial Forchheimer-flow region) is introduced into the Navier-Stokes equations, simulating the flow through the orifice plate between the oscillating water column (OWC) and the power take-off (PTO) system. By analyzing wave reflection characteristics, energy conversion efficiency, and wave run-up, the hydrodynamic behavior of the double-slope OWC is explored. The results indicate that the slope-type OWC not only captures wave energy but also significantly reduces wave run-up, thereby enhancing the protective performance of the breakwater.

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Hydrodynamic Performance of a Slope-Typed OWC Wave Energy Converter

  • 会议论文

  • 发表日期：

    2025年

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  • Taotao Tao,
  • Xiaodong Wang,
  • Zhengzhi Deng,
  • Dahai Zhang,
  • Shuai Shi,
  • Shengxin Xiong

摘要

This paper investigates the wave energy conversion efficiency and hydrodynamic characteristics of an integrated slope-type wave energy converter through numerical simulation methods. The numerical simulations are based on the open-source computational fluid dynamics (CFD) platform OpenFOAM, utilizing the waves2Foam wave generation tool to create and dissipate waves. Additionally, the Volume of Fluid (VOF) method is employed to capture the gas-liquid interface. To enhance computational efficiency, an artificial source term (artificial Forchheimer-flow region) is introduced into the Navier-Stokes equations, simulating the flow through the orifice plate between the oscillating water column (OWC) and the power take-off (PTO) system. By analyzing wave reflection characteristics, energy conversion efficiency, and wave run-up, the hydrodynamic behavior of the double-slope OWC is explored. The results indicate that the slope-type OWC not only captures wave energy but also significantly reduces wave run-up, thereby enhancing the protective performance of the breakwater.