具有叶片尾缘弯板结构垂直轴风力机气动特性研究  

AERODYNAMIC STUDY ON VERTICAL AXIS WIND TURBINE WITH CURVED PLATE ADDING AT BLADE TRAILING EDGE

作　　者：李岩[1,2] 赵守阳 曲春明[1] 田川公太朗 冯放[2] Li Yan;Zhao Shouyang;Qu Chunming;Tagawa Kotaro;Feng Fang(Engineering College of Northeast Agricultural University,Harbin 150030,China;Heilongjiang Provincial Key Laboratory of Technology and Equipment for the Utilization of Agricultural Renewable Resources in Cold Region,Harbin 150030,China;Faculty of Agriculture,Tottori University,Tottori 580-8551,Japan)

机构地区：[1]东北农业大学工程学院,哈尔滨150030 [2]寒地农业可再生资源利用技术与装备黑龙江省重点实验室,哈尔滨150030 [3]日本鸟取大学农学部,日本鸟取580-8551

出　　处：《太阳能学报》2020年第9期338-346,共9页Acta Energiae Solaris Sinica

基　　金：黑龙江省教育厅科学技术研究项目(12541012)。

摘　　要：以采用NACA0018翼型的两叶片直线翼垂直轴风力机为对象,在叶片尾缘部分安装弯板以改善其气动特性。利用数值模拟方法对弯板的主要结构参数进行研究,计算具有7种弯板长度、7种弯板宽度和5种弯板弯曲度风力机的动态输出功率特性和静态启动特性。选取其中具有最优弯板结构的风力机,对其在不同方位角下的受力情况和动静态流场进行分析。结果表明,当弯板长度在30%~40%叶片弦长,宽度在5%~15%叶片弦长,弯曲方向与叶片弦长夹角在20°~40°时对风力机气动特性的改善效果最佳。Take the Straight-blade Vertical Axis Wind Turbine(SB-VAWT)with two blades of NACA0018 airfoil as the study object,and curved plate installed at blade trailing edge to improve the aerodynamic characteristics.Numerical simulations were carried to calculate the dynamic output power characteristics and static starting torque characteristics of two blades SB-VAWT with different parameters of curved plate adding at blade trailing edge,seven types’length and width of curved plate,and five types’bending degree of curved plate were selected.The optimal curved plate structure is selected to analyze the force and flow field under different azimuth angle.The results show that the best parameters of curved plate which has optimization effect on aerodynamic characteristics of SB-VAWT are as follow:the length is 30%-40%of blade chord length,the width is 5%-15%of blade chord length,and the angle between curved plate direction and blade chord direction is 20°-40°.

关 键 词：风力机 翼型 数值模拟 叶片尾缘 弯板 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]