A new direct design method of wind turbine airfoils and wind tunnel experiment
A new direct design method of wind turbine airfoils and wind tunnel experiment
复制标题
风力机翼型直接设计新方法及风洞实验
DOI：
10.1016/j.apm.2015.09.051
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发表时间：
2016
影响因子：
5
通讯作者：
Grasso Francesco
中科院分区：
文献类型：
--
作者：
Chen Jin;Wang Quan;Zhang Shiqiang;Eecen Peter;Grasso Francesco
首次提出了基于泰勒高阶多项式级数的风力机涡轮机专用翼型通用参数化表示函数（形状函数）。研究了翼型的设计空间和形状控制功能。高性能WT（风力涡轮机）翼型的目标是在自由和固定过渡段的设计攻角下使升阻比最大化。结合遗传算法和流场求解器RFOIL建立了翼型的优化数学模型。具有目标特性的新翼型系列（厚度范围从15%到20%）是为大型兆瓦级转子的变桨距控制变速操作而设计的。对WT180翼型进行了清洁和粗糙条件下的风洞实验。升力系数和阻力系数的实验结果与RFOIL的预测吻合得很好。试验验证了WT180翼型的高升阻比和高的最大升力系数。结果表明，该方法对涡轮机翼型的优化设计是可行的。
A general parametric representation function (Shape Function) for wind turbine – dedicated airfoils based on Taylor high-order polynomial series is presented for the first time. The design space and shape control function of the airfoil have been studied. The objective of the high-performance WT (Wind Turbine) airfoils was to maximise the lift/drag ratio at the design angle of attack both in free and fixed transitions. The optimised mathematical model of the airfoils is built combing genetic algorithm and the flow solver RFOIL. The new airfoil family (ranging in thickness from 15 to 20%) with target characteristics were designed for variable-speed operation with pitch control of large megawatt-sized rotors. Wind tunnel experiments for the WT180 airfoil were carried out for both clean and rough conditions. The experimental results for the lift and drag coefficients agree well with the RFOIL predictions. The testing verified the high lift/drag ratio and the high maximum lift coefficient for the WT180 airfoil. The results indicate that this novel design method is feasible to optimise wind turbine airfoils.