基于柔性尾缘襟翼风力机翼型性能主动控制研究  

STUDY OF ACTIVE CONTROL FOR WIND TURBINE AIRFOIL PERFERMANCE BASED ON DEFORMABLE TRAILING EDGE FLAP

作　　者：郝文星[1] 叶舟[1,2] 李春[1,2] 杨阳[1] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]上海市动力工程多相流动与传热重点实验室,上海200093

出　　处：《太阳能学报》2017年第5期1339-1345,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(E51176129);上海市教育委员会科研创新项目(13YZ066);上海市研究生创新基金(JWCXSL1402)

摘　　要：通过对柔性尾缘襟翼(DTEF)参数化建模,实现对尾缘襟翼柔性变形与控制。数值模拟DTEF对翼型气动特性的静态及动态情况下的影响,并验证非定常来流下尾缘襟翼对翼型载荷的动态控制效果。研究得出以下结论:DTEF位于不同摆角时,翼型升力系数与阻力系数均有不同程度的明显改变,并随翼型所处攻角的不同改变规律略有变化;DTEF的摆动过程中,翼型升力系数滞后于摆角的变化,DTEF改变升力系数的能力降低;翼型阻力系数超前于摆角的变化,DTEF改变阻力系数的能力增加,襟翼摆动的非定常效应随摆动周期减小而增强;采用跟随风速变化的策略控制尾缘襟翼摆动可有效减缓非定常来流下翼型受力波动。Parametric programming was adopted on deformable trailing edge flap （DTEF） model to accomplish airfoil trailing edge flap flexible deformation control. CFD analysis was carried out to analyze the affection of DTEF on airfoil aerodynamic characteristics on the static and dynamic conditions and verify the ability to control the force on airfoil in unsteady inflow. It concludes that the angle of flap affects the lift coefficient and drag coefficient and the effects with different swing angle are different; Swing DTEF makes the lift coefficient change of airfoil lags the change of swing angles, the capacity of DTEF to change lift coefficient is weakened; Airfoil drag coefficient change is ahead of the change of the angle of flap, the capacity of DTEF to change drag coefficient is enhanced, these unsteady effects of flap oscillating are enhanced with the decrease of the oscillation cycle. The oscillation of DTEF can mitigate the force on airfoil under gust by swing with the change of wind speed obviously.

关 键 词：风力机翼型 尾缘襟翼 载荷控制 计算流体力学 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]