风力机的翼型弯度对风力机翼型气动性能的影响  

Effect of Aerofoil Camber on Airfoil Aerodynamic Performance

作　　者：李仁年[1] 张士昂[1] 杨瑞[1] 李德顺[1] 

机构地区：[1]兰州理工大学,甘肃兰州730050

出　　处：《流体机械》2009年第5期17-21,共5页Fluid Machinery

基　　金：国家"九七三"重点基础研究发展计划;甘肃省科技攻关项目资助(2007CB714605)

摘　　要：利用CFD软件对S827翼型进行数值计算,验证了选用RNG k-ε两方程作为CFD数值计算的湍流模式的合理性。基于RNG k-ε湍流模式对S902和S903两种翼型的气动性能进行了数值模拟计算,研究了翼型弯度对翼型的升力特性、阻力特性、最大升力系数、最大升阻比、流动分离特性、失速特性和深失速特性等气动特性的影响。Aerofoil camber is one of the main parameters of the geometric that affect the airfoil aerodynamic characteristics. A research on the simulation analysis of airfoil S827 by CFD software, then the two-equation RNG k-ε is taken as the CFD numerical models of turbulence. Secondly, the airfoil aerodynamic of S902 and S903 are performed simulation analysis according to the RNG k-ε turbulence model ,then the impact of Aerofoil camber to lift characteristics, resistance characteristics, the biggest lift coefficient, the largest lift-drag ratio, flow separation characteristics, and stall characteristics such as deep stall aerodynamic characteristics can be studied.

关 键 词：翼型弯度 RNG k-ε湍流模式 气动特性 CFD 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]