前缘凹坑及涡流发生器对风力机翼型气动性能影响  

Study of Leading Edge Pit and Vortex Generator on Aerodynamic Performance of Airfoi

作　　者：冯学斌[1] 凡盛 詹佳普 胡杰桦[1] 梁鹏程[1] 戴龙侠[1] FENG Xuebin;FAN Sheng;ZHAN Jiapu;HU Jiehua;LIANG Pengcheng;DAI Longxia(Zhuzhou Times New Material Technology Co,Ltd,Zhuzhou Hunan 412007,China)

机构地区：[1]株洲时代新材料科技股份有限公司,湖南株洲412007

出　　处：《机械设计与研究》2023年第4期247-251,256,共6页Machine Design And Research

基　　金：国家重点研发计划项目(2019YFB1503700)。

摘　　要：通过风洞试验,对相对厚度为21%的风力机翼型及前缘凹坑进行研究。前缘凹坑损伤是采用三维软件进行建模,并利用3D打印技术对模型进行加工的。本次风洞试验考虑了光滑模型、前缘凹坑模型以及增加涡流发生器(VG)后翼型的气动性能。通过对升力系数及压力系数的分析进行流态判读,并采用荧光丝线方式进行流动显示,揭示了翼型失速过程。同时,测试结果表明,前缘凹坑会降低翼型的升力系数,增加翼型的阻力系数。而在前缘带凹坑的翼型上安装VG后,可以改善前缘凹坑翼型的气动性能。In this paper,wind turbine airfoils with relative thickness of 21%and leading edge pits are studied by wind tunnel tests.The leading edge pit damage is modeled by 3D software and processed by 3D printing technology.In this wind tunnel test,the aerodynamic performance of the smooth model,the leading edge pit model and the airfoil with an additional vortex generator(VG)are considered.Through the analysis of the lift coefficient and the pressure coefficient,the flow state is interpreted,and the flow display is carried out using fluorescent silk wires,which reveals the stall process of airfoil.At the same time,the test results show that the leading edge pits can reduce the lift coefficient of the airfoil and increase the drag coefficient of the airfoil.The aerodynamic performance of the leading edge pitted airfoil can be improved by installing a VG on the leading edge pitted airfoil.

关 键 词：风洞试验 3D打印 前缘凹坑 VG 荧光丝线 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程]