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首页> 外文期刊>Mathematical Problems in Engineering >Development of a Three-Dimensional Fully Nonlinear Potential Numerical Wave Tank for a Heaving Buoy Wave Energy Converter
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Development of a Three-Dimensional Fully Nonlinear Potential Numerical Wave Tank for a Heaving Buoy Wave Energy Converter

机译：用于浮标波能量变换器的三维全非线性函数数字波罐的开发

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摘要

The hydrodynamic performance of a vertical cylindrical heaving buoy-type floating wave energy converter under large-amplitude wave conditions was calculated. For this study, a three-dimensional fully nonlinear potential-flow numerical wave tank (3D-FN-PNWT) was developed. The 3D-FN-PNWT was based on the boundary element method with Rankine panels. Using the mixed Eulerian-Lagrangian (MEL) method for water particle movement, nonlinear waves were produced in the PNWT. The PNWT can calculate the wave forces acting on the buoy accurately using an acceleration potential approach. The constant panels and least-square gradient reconstruction method were applied to regridding of computational boundaries. An artificial damping zone was employed to satisfy the open-sea conditions at the end free surface boundaries. The diffraction and radiation problems were solved, and their solutions were confirmed by a comparison with previous studies. The interaction of the incident wave, floating body, and power take-off (PTO) behavior was examined in the time domain using the developed 3D-FN-PNWT. From comparison, the difference between the conventional linear analysis and the nonlinear analysis in large-amplitude waves was examined.
机译：计算在大幅度波条件下垂直圆柱形浮标浮标型浮波能转换器的流体动力学性能。对于该研究，开发了一种三维全非线性电势 - 流量数字波罐（3D-FN-PNWT）。 3D-FN-PNWT基于Quankine面板的边界元方法。使用混合的欧拉维拉格（MEL）方法进行水颗粒运动，在PNWT中产生非线性波。 PNWT可以使用加速潜在方法准确地计算作用在浮标上的波浪力。恒定面板和最小二乘梯度重建方法应用于计算边界的雷发。使用人造阻尼区以满足最终自由表面边界的开阔条件。解决了衍射和辐射问题，并通过与先前的研究相比证实了它们的溶液。使用开发的3D-FN-PNWT在时域中检查入射波，浮体和电力耗尽（PTO）行为的相互作用。从比较中，研究了传统线性分析与大幅波中的非线性分析之间的差异。

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  • 来源
    《Mathematical Problems in Engineering》 |2019年第19期|5163597.1-5163597.17|共17页
  • 作者

    Kim Sung-Jae; Koo Weoncheol;

  • 作者单位

    Univ Ulsan Sch Naval Architecture & Ocean Engn Ulsan South Korea;

    Inha Univ Dept Naval Architecture & Ocean Engn Incheon South Korea;

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