双螺旋转子式波浪能发电装置数值仿真分析

Numerical Simulation Analysis on the Double Helix Rotor Type Wave Energy Power Generation Device

将波浪能转化为电能是海洋能研究的一个热点,设计了一种利用波浪上下运动带动螺旋转子转动的双螺旋转子式波浪能发电装置。利用Fluent对双螺旋转子叶片数量、叶片长度、螺旋转子与圆管间隙之间的距离进行压力及速度分布特性的数值仿真分析,计算出双螺旋转子在不同情况下的力矩,其结果表明:对于某固定的双螺旋转子,叶片数量、叶片长度、轮缘间隙存在最佳值使转轮转矩达到最大,为下一步定量优化装置提供了理论依据。

Converting wave energy into electricity is a hotspot in marine energy research. In this paper, a double helix rotor type wave energy power generation device is designed, which could acquire energy by utilizing the up and down motion of ocean waves. The Fluent software is adopted to conduct numerical simulation analysis on the characteristics of pressure and velocity distribution in the number of the blade, the length of the blade and the distance between the screw rotor and circular tube clearance. The double helix rotor torque is calculated under different situations. The results show that, for a fixed double helix rotor, the number of the blade, the length of the blade and the impeller clearance all have optimal values to maximize the rotor torque. The results obtained in this paper provide a theoretical basis for further quantitative optimization for the wave energy power generation device.