提高水平轴风力机叶型升力的实验研究  

EXPERIMENTAL RESEARCH TO INCREASE HORIZONAL AXIS WIND TURBINE BLADE AIRFOIL LIFT COEFFICIENT

作　　者：霍福鹏[1] 刘红[1] 陈佐一[1] 

机构地区：[1]清华大学热能工程系,北京100084

出　　处：《工程热物理学报》2003年第2期220-223,共4页Journal of Engineering Thermophysics

基　　金：国家"九七三"重点基础研究专项经费资助项目(No.G1999022306)

摘　　要：本文针对某水平轴风力机叶片不同叶高分布的两种叶型,在头部不同位置加入不同频率和动量的振荡射流进行对比实验研究,得到不同情况下叶型的表面压力分布。发现在叶片吸力面头部某些位置加入一定频率和动量段范围内的振荡射流,可以有效的提高叶型的升力系数,达到改善风力机叶型气动性能的目的,为风力机叶片的流动控制技术提供了一种有效的方案。The paper presents some experiments of the control of flow separation from two different wind turbine blade airfoils solid surface by oscillating jet. The oscillating jet on the top of the surface can increase the lift coefficient of airfoil when the frequencies are in some cases. The surface pressure coefficient on airfoil has been given. The effect of frequencies and the momentum of the jet on lift coefficient have been studied on experiment. These researches give a new way to improve the wind turbines efficiency.

关 键 词：实验 风力机 振荡射流 流动控制 风力发电 叶片 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]