冰区四季通用灯浮标的二阶波浪力计算

振荡水柱（Oscillating water column，OWC）波浪能采集装置气室底部引浪通道对波浪能采集效率具有重要意义，基于流体动力学分析（CFD）技术研究OWC装置气室底部轮廓的优化问题。在ICEM CFD仿真分析系统中建立四种气室底部结构的二维引浪通道模型，应用FLUENT软件流体分相处理及明渠造波法和数值沙滩消波方法建立基于线性波浪理论的二维数值波浪水槽。仿真分析显示圆形底部轮廓OWC气室较其它三种轮廓结构的气室墙壁受到压力小，形成的反射波小，波能损失小，气室出口速度快由此形成的气室压力大，波能转换效率高。

英文摘要:

The four-season buoy used in freezing areas is a new type of buoy that can meet the needs of navigation aids in the winter frozen ports in high latitudes. The second-order wave force has a great influence on its floating attitude and drift movement. In this paper, the numerical calculation method for the second-order wave force of the buoy is studied, with the second-order wave forces of lighted buoy and conical buoy respectively calculated at different flow velocities. The results show that the first-order wave forces received by the can buoys and conical buoys are not very different, and the second-order wave forces of can buoys are significantly weaker than the conical buoys, which means that the can buoy has a certain shape advantage.

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