摘要
叶片是风力机中最关键的部件,其气动性能决定风力机的风能利用效率。本文通过Glauert法设计1.5 MW水平轴风力机叶片,并利用FLuENT中的k-ωSST湍流模型,采用周期性边界,对叶片进行气动性能进行数值模拟。分析叶片桨距角固定的风力机在不同来流时风轮的转矩和轴向推力。研究表明:风轮在额定工况下,输出功率1 602 kW,风能利用系数达到0.325,满足设计要求;风速大于12 m/s时,可通过适当降低转速来维持风力机输出功率。
As the key component of wind turbine, and the energy catching efficiency of wind turbine is determined by aerodynamic performance of the blade. The 1.SMW horizontal axis wind turbine blade is designed with the method of Glauert theory. And the aerodynamic performance of the blade is simulated by the software of FLUENT under the k-w SST turbulent model and periodic boundary. Then, the moment and axial thrust of the turbine with fixed pitch angle are analyzed at different wind speeds. The results show that the output power of the turbine is 1 602 kW under the designing condition, and the wind energy catching coefficient is 0.325. The performance of the turbine can meet the design requirements. When the wind speed is greater than 12 m/s, the output power of the wind turbine can be well maintained by reducing the rotational speed.
出处
《浙江海洋学院学报（自然科学版）》
CAS
2015年第2期145-150,共6页
Journal of Zhejiang Ocean University(Natural Science Edition)
基金
国家自然科学基金面上项目(51379189)
关键词
水平轴风力机
Glauert设计法
风能利用系数
轴向推力
horizontal axis wind turbine
Glauert design model
wind energy utilization coefficient
axial thrust
