翼型尾缘开口对风力机叶片气动特性的影响  

Influence of aerodynamic performance on airfoil opening trailing edge of wind turbine blades

作　　者：程帅兵 陈德龙 宗旺旺 于永峰 黄辉秀 Cheng Shuaibing;Chen Delong;Zong Wangwang;Yu Yongfeng;Huang huixiu(Lianyungang Zhongfu Lianzhong Composites Group Co.,Ltd.,Lianyungang 222006,China;Jiangsu Key Laboratory of Offshore Wind Turbine Blade Design and Manufacture Technology,Lianyungang 222006,China;School of Aerospace Engineering and Applied Mechanics,Tongji University,Shanghai 200092,China)

机构地区：[1]连云港中复连众复合材料集团有限公司,江苏连云港222006 [2]江苏省海上风电叶片设计与制造技术重点实验室,江苏连云港222006 [3]同济大学航空航天与力学学院,上海200092

出　　处：《可再生能源》2024年第10期1348-1354,共7页Renewable Energy Resources

基　　金：江苏省重大研发项目(BE2021014-3);江苏省碳达峰碳中和科技创新专项资金(重大科技成果转化)项目(BA2022113)。

摘　　要：基于工程应用中翼型尾缘开口对风力机叶片气动特性的影响,文章建立了6.7 MW水平轴风力机动力学模型,采用CFD和BEM联合仿真的方法探究了翼型尾缘开口为0,0.1%c,0.3%c,0.5%c时对风力机叶片气动特性的影响。结果表明:随着尾缘开口的增加,翼型的升力系数、升阻比具有一定程度的增加;阻力系数在失速前几乎不变,失速后略微变化;翼型发生失速的角度为12°,不同开口翼型失速分离点的位置略向后缘移动。此外,在3-D湍流风作用下,大型叶片变形和轴向力均略微增大,发电量最大增加了0.88%。Based on the practical problems,a dynamic model of 6.7 MW wind turbine was established,and the influence of opening trailing edge of 0,0.1%c,0.3%c,0.5%c on blade aerodynamics was investigated by CFD and BEM.The result shows that the lift coefficient and lift-drag ratio of the airfoil significantly increase with the increase of the opening trailing edge;the drag coefficient is almost unchanged before stall,but slightly changed after stall;the stall angle of the airfoil is 12°and the position of the stall separation point of the airfoil moves slightly backward.Otherwise,under the influence of turbulent wind,the blade deformation and axial force increased slightly,and the maximum power generation increased by 0.88%.

关 键 词：翼型 升力系数 升阻比 失速分离点 叶片变形 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程]