基于三维翼型数据的风力机气动性能分析  

Wind Turbine Performance Prediction Based on 3D Airfoil Data Extracted from Free Vortex Model

作　　者：周文平[1] 唐学鑫[1] 张安民[1] 陈小怡[1] 

机构地区：[1]泸州职业技术学院,四川泸州646005

出　　处：《机械工程与自动化》2015年第6期41-42,共2页Mechanical Engineering & Automation

基　　金：四川省泸州市科技计划(2014-S-50(7/7))

摘　　要：将风力机转子时间步进自由尾迹分析模型用于风力机空气动力学分析,得到每个桨叶微段上的三维翼型升阻力数据;然后将所得的三维升阻系数与BEM理论结合起来,计算风力机转子的气动性能,以计入三维旋转效应的影响。将计算结果与实验数据进行比较,验证了该方法的有效性,为后续进一步研究失速延迟、提高风力机转子气动性能预测的准确性提供理论支撑。In this article ,we consider the NREL Phase VI rotor where airfoil data are extracted from Free Vortex Wake （FVW） re-sults .The azimuthally averaged velocity is used as the sectional velocity to define the angle of attack and the coefficients of lift and drag are determined by the forces on the blades .The extracted airfoil data are put into a Blade Element Momentum （BEM ）code with-out further corrections ,and the calculated data are compared to both computations using BEM with Shen ＆#39;s tip loss correction model and experimental data .The comparisons show that the recalculated forces by using airfoil data extracted from FVM have good agree-ments with the experiment .

关 键 词：水平轴风力机 气动性能 自由尾迹模型 三维翼型数据 BEM理论 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术] TK83[自动化与计算机技术—计算机科学与技术]