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...
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)
关键词
翼型
大迎角
分离流动
动态失速
轻失速
深失速
airfoil
high angle of attack
separated flows
dynamic stall
light stall
deep stall
