摘要
为了验证添加Gurney襟翼的一种风力机叶片在各种风速下的实际增升效果,用计算流体力学的方法计算NREL Phase VI风力机叶片以及加Gurney襟翼(3%的翼型弦长)后叶片的流场,比较不同来流风速下叶片表面的压强分布与流速分布.计算结果表明,加Gurney襟翼后叶片压力面的压力有所增加,吸力面压力降低,且各面压力分布趋于均匀,压力面和吸力面的压力差显著增大,提高了风力机叶片的升力.
In order to validate the actual rise effect of a wind turbine blade added with Gurney flap in variable wind speed,the method of computational fluid mechanics was used to calculate the flow field around the NREL-Phase VI wind turbine blades without and with the Gurney flap of 3% airfoil chord in length.The pressure and velocity distribution on blade surface in different wind speeds was compared.The calculation results showed that the installation of Gurney flap made the pressure on the pressure surface of the blade increased and the pressure on suction surface dropped.The pressure distribution would tend to be uniform,also.The pressure different between suction and pressure surfaces increased significantly and the blade lift of the wind turbine improved thereby.
出处
《兰州理工大学学报》
CAS
北大核心
2013年第1期42-45,共4页
Journal of Lanzhou University of Technology
基金
国家自然科学基金(1106ZGA045)
教育部博士点基金(1106ZBA004)
关键词
GURNEY襟翼
风力机
CFD
流场
Gurney flap
wind turbine
computational fluid dynamics
flow field
