摘要
介绍了动态失速物理过程及Leishman-Beddoes(L-B)动态失速模型,将其应用到已有的风力机气动性能预测程序中。该文以美国可再生能源实验室的水平轴风力机为基础,预测了在有无偏航情况下不同来流风速的功率,并与美国国家可再生能源实验室的实验结果进行了比较,两者较为吻合。通过给出不同径向位置下攻角和气动力曲线,分析了偏航导致的动态失速发生的基本特征,为进一步研究打下基础。
In this study, the physical process of dynamic stall and Leishman-Beddoes model was introduced for applying the wind turbine aerodynamics, and comparing the experiments of NREL. The predictions of power in yawed flow and unyawed flow are validated against the unsteady aerodynamics experiment. Giving the angle of attack and aerodynamics curves in different radius location and analyzing the dynamic stall characteristics in yawed flow are useful for intensive study.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2009年第9期1297-1300,共4页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(50576052)
博士点基金(20060248036)
关键词
动态失速
偏航
风力机
dynamic stall
yaw flow
wind turbine
