抛物线翼缝对风力机翼型气动性能影响  

Influence of parabolic slot on aerodynamic performance of wind turbine airfoil

作　　者：张唯 叶舟[1,2] 李春 刘亚锁[1] ZHANG Wei;YE Zhou;LI Chun;LIU Yasuo(School of Energy and Power Engineering,University of Shanghai for Science and Technology,200093 Shanghai,China;Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering,200093 Shanghai,China)

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]上海市动力工程多相流动与传热重点实验室,上海200093

出　　处：《应用力学学报》2024年第6期1282-1287,共6页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金资助项目(No.51976131,51676131);上海“科技创新行动计划”地方院校能力建设资助项目(No.19060502200)。

摘　　要：为了有效提升翼型气动性能,针对被动流动控制方式,以S809翼型为基础研究对象,对其构建抛物线翼缝,翼缝出入口均在翼型压力面上。通过计算流体力学的数值模拟方法,研究抛物线翼缝入口位置与出口位置距离翼型前缘的长度、顶点位置距离翼型弦线的高度以及翼缝宽度对抛物线翼缝翼型气动性能的影响,并结合流场结构分析翼缝的作用机理。研究结果表明:在各攻角下,抛物线翼缝翼型的升力系数表现优于原始翼型,12°~18°攻角下,抛物线翼缝翼型升阻比均大于原始翼型,最大增幅约为10.2%。据流场分析,翼缝产生的压力使翼型整体压力差变大,是抛物线翼缝翼型气动性能提升的主要原因。In order to effectively improve the aerodynamic performance of the airfoil,the S809 airfoil is taken as the basic research object for passive flow control mode,and the parabolic wing slots are constructed.The inlet and outlet of the slots are both on the airfoil pressure surface.In addition to the influence of the inlet and outlet positions of parabolic slots on the aerodynamic performance of the airfoil,the influence of the width of the slots at the vertex position is also studied by the numerical simulation method of computational fluid dynamics,and the mechanism of the slots is analyzed by combining the flow field structure.The results show that the lift coefficient of the parabolic slots is better than that of the original airfoils at various angles of attack,and the lift-drag ratio of the parabolic slots is greater than that of the original airfoils at angles of attack from 12°to 18°,with the maximum increase of about 10.2%.According to the flow field analysis,the pressure generated by the slots increases the overall pressure difference of the airfoil,which is the main reason for the improvement of the aerodynamic performance of the parabolic slots.

关 键 词：翼型 抛物线翼缝 气动性能 流场 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]