风力机翼型大迎角分离和动态失速的数值研究  

Simulation of Separated Flows at High Angles of Attack for Wind Turbine Airfoil and Its Dynamic Stall

作　　者：黄知龙[1,2] 刘沛清[2] 赵万里[2] 

机构地区：[1]中国空气动力研究与发展中心设备设计与测试技术研究所,四川绵阳621000 [2]北京航空航天大学流体力学教育部重点实验室,北京100191

出　　处：《电网与清洁能源》2010年第5期47-51,共5页Power System and Clean Energy

基　　金：国家973计划(2009CB72400101);ZN310Z型1MW风轮叶片气动外形和结构设计研究(BUAA20090193)

摘　　要：通过求解非定常、不可压缩雷诺平均的Navier-stokes方程和SST k-ω双方程湍流模型,数值预测了LS0413翼型在0°～360°迎角范围内大尺度分离与失速流场特性。并对该翼型的动态失速特性进行了数值模拟,典型的正弦振荡计算结果表明:1)SST k-ω湍流模型能够较好地模拟翼型升力和阻力系数的迟滞环变化趋势;2)绕翼型的流场结构在轻失速和深失速下存在明显的差别。The numerical simulation of separated flows at high angles of attack for airfoil and its dynamic stall is presented through an incompressible flow solver accompanied with the k-ω SST turbulence model.In this paper,the author presents the characteristics of large scale separated flow and aerodynamic forces with the angles fromzero degree to 360 degree.The results of airfoil dynamic stall suggest that(1)the k-ω SST model is an effective model to simulate the dynamic stall,and(2)the flow fields structure under...

关 键 词：翼型 大迎角 分离流动 动态失速 轻失速 深失速 

分 类 号：TM315[电气工程—电机]