中文摘要：

文章对具有波浪能转换功能的浮式防波堤性能进行评估。根据有限元空间离散法和VOF技术建立二维数值波浪水槽,模拟波浪和浮体之间的相互作用以及浮体的运动,同时记录浮体前后的波高,讨论浮子尺寸和阻尼系数对波浪透射系数和波浪能提取效率的影响。结果表明：波浪透射系数随着阻尼系数的增加而减小;在文章研究的浮子尺寸范围内,最大能量提取效率和最佳阻尼系数都随着浮子尺寸的增加而增加。

英文摘要：

In this paper, the performance of a floating breakwater with additional function as wave energy converter was assessed. A 2-D numerical wave flume based on finite element method and Volume of Fluid（VOF） was established to simulate the wave-floating body interaction, the motion of the floating body as well as record the wave elevations in front and behind the floating body. The influences of the buoy＇s cross sectional size and the damping coefficient on wave transmission coefficient and wave power extraction efficiency were discussed. The results showed that： the wave transmission coefficient decreased with the increase of damping coefficient; In the range of buoy＇s size used in this paper, the maximum wave power extraction efficiency and optimal damping coefficient increased with the increase of buoy＇s size.