流体机械

2009, v.37;No.443(05) 17-21

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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

李仁年;张士昂;杨瑞;李德顺;
LI Ren-nian,ZHANG Shi-ang,YANG Rui,LI De-shun(Lanzhou University of Technology,Lanzhou 730050,China)

摘要(Abstract):

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(KeyWords): 翼型弯度;RNGk-ε湍流模式;气动特性;CFD
aerofoil camber;RNG k-ε turbulence model;aerodynamic characteristics;CFD

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基金项目(Foundation): 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)

作者(Author): 李仁年;张士昂;杨瑞;李德顺;
LI Ren-nian,ZHANG Shi-ang,YANG Rui,LI De-shun(Lanzhou University of Technology,Lanzhou 730050,China)

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