Mathematical and Numerical Modelling of Wave Impact on Wave-Energy Buoys
Mathematical and Numerical Modelling of Wave Impact on Wave-Energy Buoys
复制标题
波浪对波浪能浮标冲击的数学和数值模拟
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
O. Bokhove
中科院分区：
文献类型：
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作者：
A. Kalogirou;O. Bokhove
我们报告的数学和数值模拟的放大流氓波驱动波能设备在收缩。这种波能装置由一个浮动浮标连接到一个交流感应电动机和约束向上移动，只有在收缩，我们已经实现了一个工作的比例模型。本文导出了水波和运动波能浮标动力学的耦合哈密顿系统。该非线性模型由经典的水波方程的自由表面偏差和速度势，耦合到一组方程描述的波能浮标的动力学。作为一个垫脚石，该模型的线性浅水波的情况下，导致运动的一个简单的浮标结构的V形横截面，使用变分（不）连续伽辽金有限元法数值求解。
We report on the mathematical and numerical modelling of amplified rogue waves driving a wave-energy device in a contraction. This wave-energy device consists of a floating buoy attached to an AC-induction motor and constrained to move upward only in a contraction, for which we have realised a working scale-model. A coupled Hamiltonian system is derived for the dynamics of water waves and moving wave-energy buoys. This nonlinear model consists of the classical water wave equations for the free surface deviation and velocity potential, coupled to a set of equations describing the dynamics of a wave-energy buoy. As a stepping stone, the model is solved numerically for the case of linear shallow water waves causing the motion of a simple buoy structure with V-shaped cross-sections, using a variational (dis)continuous Galerkin finite element method.