【作者】 赵志谦； 杨豪； 何广华； 莫惟杰； 王威；

【Author】 ZHAO Zhi-qian;YANG Hao;HE Guang-hua;Mo Wei-jie;WANG Wei;School of Naval Architecture and Ocean Engineering,Harbin Institute of Technology(Weihai);

【机构】 哈尔滨工业大学(威海)海洋工程学院；

【摘要】 振荡翼式潮流能发电装置具有发电效率高、适用于浅海、对环境友好等优点,得到广泛的研究。本研究利用STAR-CCM+重叠网格方法建立二维数值计算模型,在通过与已有的正弦运动水翼对比验证了方法有效性的基础上,研究了非正弦运动对水翼捕能效率的影响。研究发现:非正弦运动主要影响俯仰运动捕能功率,对升沉运动获能影响很小;当水翼转动时间占周期65%左右时,水翼能够获得最大获能功率,较正弦运动形式提高约12%。基于上述数值模拟结果,设计了一种半被动振荡翼潮流能发电装置。该装置能够实现非正弦俯仰转动,利用被动升沉运动实现潮流能发电,通过蓄电池为负载提供电力。更多还原

【Abstract】 Oscillating wing tidal current power generation devices have been widely studied for their high efficiency,application to shallow sea and environmental friendliness.We used STARCCM+overlapping grid method to establish a two-dimensional numerical model.To verify the e effectiveness of the method,we compared sinusoidal motion hydrofoil with our model and researched the influence of non-sinusoidal motion on the efficiency of hydrofoil energy capture.The results show that non-sinusoidal motion mainly affects the energy harvesting power of pitching motion,but has little effect on the energy harvesting power of heave motion.When the hydrofoil rotation time accounts for about 65% of the period,the hydrofoil can obtain the maximum energy power,which is 12% higher than sinusoidal motion.Based on the above numerical simulation results,we designed a semi-passive oscillating wing power generation device.The device can realize non-sinusoidal pitching rotation,realize power generation by passive heave motion,and provide power for load through battery.更多还原