【摘要】 通过对4种风力机专用翼型曲率分布与压力分布的对比分析,研究了曲率变化对压力分布变化趋势的影响规律。基于翼型型线理论,以FX66-S196-V1翼型为例,选取适当的拟合项数,通过求解其解析表达对其进行了改进设计,与原翼型的气动性能的比较验证了该方法的准确性与实用性,从而体现了翼型型线理论的优越性,为风力机专用翼型的设计理论与方法研究拓宽了思路。更多还原

【Abstract】 Aerodynamic of airfoil performance is closely related to the continuity of its surface curvature,and airfoil profiles with a better aerodynamic performance plays an important role in the design of wind turbine. The surface curvature distribution along the chord direction and pressure distribution on both suction side and pressure side of four wind turbine airfoils were analyzed. The results show that dramatic changes in the curvature cause big changes and discontinuous pressure distribution. Redesign of FX66-S196-V1 airfoil using airfoil profiles theory successfully eliminated the discontinuity of curvature distribution. And the performances of new airfoil are compared with the original one to validate,and results show an improvement,validated the advantage of the improved design method.更多还原