摘要
采用无粘和粘性结合的分析计算方法,利用低雷诺数翼型分析和设计软件XFOIL,比较了典型风力机翼型S826及其改型翼型以及由3种不同的后缘加厚方式所得翼型在气动性能上的异同,认为合理的后缘加厚方式在考虑结构强度和制造工艺的同时,可以保证翼型的气动性能不会降低太多,为进一步研究影响风力机翼型气动性能的因素做了有益的探索。
The analysis of the representative wind turbine airfoils＇ s aerodynamic performances is one of the most important bases for the design and analysis of wind turbines. The aerodynamic performances between the typical S826 airfoil and the modified airfoils with three different enlarged trailing edge thicknesses were compared using XFOIL for subsonic and low Reynolds number flows, which is the inviscid linear-vorticity panel method with source distributions superimposed on the airfoil and its wake allowing modeling of viscous layer influence on the potential folw. The ways of properly changing the trailing edge thickness not only satisfy the demands of the structure and manufacture but also don＇ t degrade the airfoil＇ s aerodynamic performance too much, and benefit the analysis of the influence on aerodynamic performances of the wind tur- bine airfoils.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2009年第8期1092-1096,共5页
Acta Energiae Solaris Sinica
基金
国家高技术研究发展计划(863)项目(2006AA05Z402)
国家重点基础研究发展计划(973)项目(2007CB714605)
关键词
后缘加厚方式
XFOIL
气动性能
翼型
风力机
ways of enlarging trailing edge thickness
XFOIL
aerodynamic performances
airfoil
wind turbine
