双浮筒式波浪能发电装置的浮体运动及水动力性能分析

Research on motion and hydrodynamic performance of the float in twin-pontoons wave energy converter

针对漂浮式波浪能发电技术,提出一种双浮筒式波浪能发电方案,为获得该装置的双浮筒浮体的运动规律,建立了双浮筒浮体及波能装置的数学模型,采用CFD方法分析浮体在不同PTO阻尼系数工况下的运动及载荷变化,根据横摇运动仿真结果选择4种定攻角工况进行水动力特性及载荷分析,得到不同攻角下浮体表面压强及受力的变化规律,并通过制作的样机模型开展简易水池试验,验证了其发电可行性,研究及试验结论为下一步装置的优化及实海况试验提供了理论依据。

In the field of the floating wave energy converter, a twin-pontoon wave energy converter is proposed. In order to obtain the motion mechanism of the twin-pontoon float of the device, mathematical model of the float in twin-pontoon is established, and the motion and load changes of float with different damping coefficient conditions are analyzed by CFD methods. On the basis of this, the change law of pressure and force of floating body under different angle of attack is analyzed.The small scale model is created and test is carried out in simple pool, to prove the power generation feasibility of the device.The study and experimental conclusions provide the theoretical basis for the optimization of the next device and the sea trial.