垂直轴风力机改进翼型气动及功率特性研究  

Research on Aerodynamic and Power Characteristic for Improved Airfoils of Vertical Axis Wind Turbine

作　　者：舒超[1] 蔡新[1,2] 潘盼[1] 朱杰[1] 张灵熙 

机构地区：[1]河海大学力学与材料学院,江苏南京210098 [2]河海大学水利水电学院,江苏南京210098

出　　处：《水电能源科学》2015年第1期162-165,172,共5页Water Resources and Power

基　　金：江苏高校"沿海开发与保护协同创新中心"计划(苏政办发[2013]56号);南通市科技引导专项(2013400303)

摘　　要：为提高垂直轴风力机的风能利用率,基于CFD数值模拟技术,分析了常用典型垂直轴风力机翼型的气动及功率特性,并以NACA0012翼型为基础对其进行改进。对比改进前后翼型表明,增大翼型厚度可降低升阻比,增大翼型弯度可增强其失速特性;厚尾缘翼型、升阻互补型翼型可分别降低翼型失速性能、增加启动力矩,其中厚尾缘翼型的H型垂直轴风力机的功率系数较大,可提高风能利用率,为翼型优化设计提供了新思路。In order to improve the wind power utilization of vertical axis wind turbine（VAWT）,this paper analyzes the common typical vertical axis wind airfoil aerodynamic and power characteristic based on CFD numerical simulation technology,and improves it on the basis of NACA0012 airfoil.Compared before and after improvement airfoils,it shows that increasing the thickness of the airfoil can reduce lift-to-drag ratio,increasing the airfoil camber can strengthen the stalling characteristics;thick trailing edge airfoil and lift-to-drag complementary airfoil can reduce stall performance of airfoil and increase the starting torque respectively;power coefficient of H-type vertical axis wind turbines with the thickness of the trailing edge airfoil is larger,which can improve wind energy utilization.Thus,it provides new way for airfoil optimization design.

关 键 词：数值模拟 垂直轴风力机 翼型 气动性能 功率系数 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]