波浪能聚集装置尺度参数研究与设计

Research and design of the scale parameter of a wave energy gathering device

针对我国波浪能开发受近海低波能密度海况限制的现状,提出一种具有喇叭状开口的聚波水道,利用其聚集波浪,提高水道内波能密度.定义聚波水道在中心线上的投影长度为特征尺度,采用Star-CCM+软件仿真与模型实验相结合的方法,研究特征尺度与入射波波长之比对增波效果的影响.对比分析表明,在收缩段入口与出口宽度一定条件下,入射波波长为特征尺度2倍时,聚波水道增波效果最佳,波高增幅达53.12%.相较于依托特殊地形的聚波方式,聚波水道不受地形限制,有助于提高波浪能发电装置在我国周边低波能密度海域的适用性.

As the development of wave energy was limited by low wave energy density conditions in China,a wave gathering channel with a trumpet-shaped opening was proposed to improve the wave energy density in the channel. The projection length of the wave gathering channel on the center line was defined as the characteristic scale. By using combination of Star-CCM ＋ numerical simulation and model experiment,the effect of wave gathering on the device under different ratio of the characteristic scale and incident wavelength was studied.Results show that the effect of wave gathering is best achieved when the incident wavelength is 2 times of the characteristic scale under the condition that the inlet and outlet width of the contraction section are certain,and the wave height increases by 53. 12%. Compared to the mode of gathering waves relying on special terrain,the wave gathering channel is not limited by topography,which is helpful to improve the applicability of the wave power generation device in the low energy density sea area around our country.