叶片弧度对碟形风力机气动性能的影响研究  

Research on the influence of blade radians on aerodynamic performance of dished wind turbine

作　　者：徐璋[1] 辛姣姣 徐贵钱 周乾伟 李开荣 XU Zhang;XIN Jiaojiao;XU Guiqian;ZHOU Qianwei;LI Kairong(Institute of Energy and Power Engineering,Zhejiang University of Technology,Hangzhou 310014;College of Computer Science and Technology,Zhejiang University of Technology,Hangzhou 310014)

机构地区：[1]浙江工业大学能源与动力工程研究所,杭州310014 [2]浙江工业大学计算机科学与技术学院,杭州310014

出　　处：《高技术通讯》2022年第2期200-207,共8页Chinese High Technology Letters

基　　金：国家自然科学基金(61802347)资助项目。

摘　　要：随着分布式能源的战略推进,小型低速风力机得到快速发展。碟形风力机具有低噪、高效、自启动等优点,本文对其叶轮进行优化设计,通过数值模拟及风洞试验,研究风轮同弦长下不同叶片弧度对风力机气动性能的影响规律,获得优化参数范围,为风力机叶轮结构定型提供依据。结果表明,叶片弧度对风力机的气动性能影响随着叶片弧度的增加呈先增后减,在0°~180°的7个水平变化中,最大风能利用系数从0°模型对应的0.212增至60°模型对应的0.364,然后下降到180°模型对应的0.168。选取3个模型进行3D打印成型,在低速风洞中进行功率特性测量,将得到的结果与数值模拟的结果进行对比,很好地验证了数值模拟中叶片弧度对风力机气动性能影响的规律。With the strategic advancement of distributed energy,small low-speed wind turbine has been developed rapidly.Dished wind turbine has the advantages of low noise,high efficiency,and self-starting.In this paper,the optimal design of its impeller is carried out,through numerical simulation and wind tunnel experiment,the influence law of different blade radians on the aerodynamic performance of wind turbine under the same chord length of wind turbine is studied,and the range of optimized parameters is obtained,which provides the basis for the design of wind turbine impeller structure.The results show that the influence of blade radian on the aerodynamic performance of wind turbine increases first and then decreases with the increase of blade radian.In 7 degree levels between 0°-180°,the maximum wind energy power coefficient increases from 0.212 for the 0°model to 0.364 for the 60°model,and then decreases to 0.168 corresponding to 180°model.Three models are selected for 3D printing,and the power characteristics are measured in a low-speed wind tunnel.The results are compared with the results of numerical simulation,which well verifies the influence of blade radians on the aerodynamic performance of wind turbine.

关 键 词：碟形风力机 叶片弧度 气动性能 数值模拟 风洞试验 

分 类 号：TM315[电气工程—电机]