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本文利用UCFD计算软件,对扑翼扑动获取潮流能进行了数值模拟研究。参照相关实验结果,进行数值模拟结果的确认。对不同系列翼型在水中获能变化进行了数值模拟和对比研究。结果表明:对于NACA 4系列、A系列和S系列翼型,获能效率随着叶片的厚度先逐渐增大后减小;对于所研究的NACA 6系列和FX系列基本随着翼型厚度的增大而增大;对于弯度相差不大的翼型,只要翼型厚度相近,且涡的形成与耗散方式相同,则其获能效率相近;对于相等厚度的翼型,翼型最大厚度的位置离尾缘越近,则翼型的获能效率会越低;对于薄翼型来说,对称翼型比不对称翼型有更高的获能效率;前缘涡在合适的位置生成与脱落,有利于提高翼型的升沉力和升沉力做功。
In this paper, using UCFD calculation software, numerical simulation research on the flutter flutter acquisition tidal current energy. With reference to relevant experimental results, numerical simulation results were confirmed. The numerical simulation and comparative study of different series of airfoils in water were conducted. The results show that for NACA 4 series, A series and S series airfoils, the energy efficiency increases first and then decreases with the thickness of the blade. For the NACA 6 and FX series, Large and large; for the airfoil with little difference in camber, as long as the airfoils have similar thickness and the vortex is formed and dissipated in the same way, its energy-harvesting efficiency is similar; for the airfoils of equal thickness, the maximum thickness of the airfoil The closer to the trailing edge, the lower the efficiency of the airfoil. For thin airfoils, the symmetrical airfoils have higher energy efficiency than the asymmetric airfoils. The leading airfoils generate and shed at appropriate positions , Is conducive to improving the ascending force and ascending force of airfoil work.