Aerodynamic Analysis of Blunt Trailing Edge Airfoils
Aerodynamic Analysis of Blunt Trailing Edge Airfoils
复制标题
DOI：
10.1115/1.1629103
复制
发表时间：
2003-11
影响因子：
2.3
通讯作者：
K. Standish;C. V. Dam
中科院分区：
文献类型：
--
作者：
K. Standish;C. V. Dam
提出了大型风力涡轮机叶片内侧采用钝尾缘翼型的方案。钝后缘翼型将不仅提供许多结构益处，例如增加的结构体积和易于制造和处理，而且已经发现它们改善翼型的升力特性。因此，钝后缘翼型的结合将允许叶片设计者更自由地解决结构需求，而不必牺牲空气动力学性能。有限的实验数据使得风力涡轮机设计者难以考虑和使用这些截面形状进行折衷研究，并且为目前使用计算流体动力学分析钝后缘翼型提供了动力。几种计算技术，包括粘性/非粘性相互作用方法和三个雷诺平均Navier-Stokes方法。
The adoption of blunt trailing edge airfoils for the inboard region of large wind turbine blades has been proposed. Blunt trailing edge airfoils would not only provide a number of structural benefits, such as increased structural volume and ease of fabrication and handling, but they have also been found to improve the lift characteristics of airfoils. Therefore, the incorporation of blunt trailing edge airfoils would allow blade designers to more freely address the structural demands without having to sacrifice aerodynamic performance. Limited experimental data make it difficult for wind turbine designers to consider and conduct tradeoff studies using these section shapes and has provided the impetus for the present analysis of blunt trailing edge airfoils using computational fluid dynamics. Several computational techniques are applied, including a viscous/inviscid interaction method and three Reynolds-averaged Navier-Stokes methods.