Simulation of aerodynamic performance affected by vortex generators on blunt trailing-edge airfoils

作     者：YANG Ke1,2,ZHANG Lei1,3 & XU JianZhong1,2 1 Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China 2 Key Laboratory of Wind Energy Utilization,Chinese Academy of Sciences,Beijing 100190,China 3 Graduate School of Chinese Academy of Sciences,Beijing 100190,China 

作者机构：Institute of Engineering Thermophysics Chinese Academy of Sciences Beijing China Key Laboratory of Wind Energy Utilization Chinese Academy of Sciences Beijing China Graduate School of Chinese Academy of Sciences Beijing China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2010年第53卷第1期

页      面：1-7页

核心收录：

学科分类：0810[工学-信息与通信工程] 080103[工学-流体力学] 08[工学] 080104[工学-工程力学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China (Grant No.50836006) 

主　　题：vortex generators airfoil blunt trailing-edge 

摘      要：An investigation was carried out by numerical simulation on a wind turbine airfoil and a blunt trailing-edge airfoil with and without vortex generators (VGs), and the performance of the airfoils was analyzed. By the simulation of airfoil DU 91-W2-250 it was verified that the numerical method and model were credible. Based on this airfoil, a new one with a blunt trailing edge of 6% chord was blended by symmetrically adding thickness, and its characteristics curves were obtained through computing at key angles of attack. Additionally, the pressure distribution on blended airfoil was analyzed by comparing to the airfoil without blend. The interaction of streamwise vortices induced by VGs with trailing vortex or separation vortex was considered, followed by the uncovery of how VGs can suppress the boundary layer separation.