摘要
为提高垂直轴风力机(VAWT)的气动性能,提出了一种尾缘双襟翼结构设计,通过数值模拟方法,研究分析了不同襟翼偏转角及主动控制策略对VAWT气动性能的影响。结果表明:当上下襟翼的偏转角为30°时,VAWT气动性能得到有效提升,并且能够适应更广泛的尖速比条件;在主动控制策略下尾缘双襟翼结构可显著增加叶片的表面压差、优化叶片表面压力分布以及提升叶片转矩,从而进一步改善VAWT的气动性能;在研究涉及的尖速比范围内(1.44~3.30),风能利用系数峰值较参考VAWT提高了37.8%。
To enhance the aerodynamic performance of vertical axis wind turbines(VAWT),a novel design method featuring double trailing edge flaps was proposed.The impact of varying flap deflection angles and active control strategies on the aerodynamic performance of VAWT was analyzed by numerical simulation method.The result reveals that an optimal improvement in aerodynamic performance of VAWT is achieved when the deflection angles of upper and lower flaps are set at 30°,which also broadens the operational range of tip speed ratios.Under active control strategy,the dual flap structure at the trailing edge can significantly increase the pressure difference on the blade surface,optimize the pressure distribution on the blade surface,enhance the blade torque,and further improve the aerodynamic performance of VAWT.The peak wind energy utilization coefficient in the range of the investigative tip ratio from 1.44to 3.30 increases by 37.8%compare with that of reference VAWT.
作者
屈峻
叶舟
余豪
李春
QU Jun;YE Zhou;YU Hao;LI Chun(School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai,China,200093;Shanghai Key Laboratory of Multiphase Flow and Heat Transfer for Power Engineering,Shanghai,China,200093)
出处
《热能动力工程》
北大核心
2025年第9期191-198,共8页
Journal of Engineering for Thermal Energy and Power
基金
国家自然科学基金(51976131)。
关键词
垂直轴风力机
尾缘双襟翼
主动控制
气动性能
vertical axis wind turbine(VAWT)
double trailing edge flaps
active control
aerodynamic performance
