不同迎角的翼型气弹特性风洞实验研究  

Aeroelastic characteristics of airfoils at different angels of attack in wind tunnel testing

作　　者：刘畅畅[1] 刘子强[1] 季辰[1] 

机构地区：[1]中国航天空气动力技术研究院,北京100074

出　　处：《空气动力学学报》2012年第2期271-276,共6页Acta Aerodynamica Sinica

基　　金：国家重点基础研究发展计划;大型风力机的空气动力学基础研究(2007CB714603)

摘　　要：基于可在不同迎角下作沉浮、俯仰两自由度运动的翼段振动装置,在低速风洞中分别针对普通薄翼型NA-CA0012和风力机翼型NREL S809进行气动弹性测试,得到不同实验状态的气动弹性振动时域响应。分别观察到经典颤振和失速颤振现象,并证明了迎角改变对两种翼型颤振特性的影响。Based on the airfoil vibration model that can plunge and pitch at different angles of attack, the aeroelastic tests with typical airfoil NACA0012 and NREL S809 were implemented in the low speed wind tunnel, and sufficient vibration response in time domain with different wind speeds and angles of attack were measured. Via analyzing those aeroelastic responses under various experimental conditions, typical flutter and stall flutter were ob-served. It shows that the angle of attack effects on changes of the state of flutter.

关 键 词：翼型 风洞实验 气动弹性 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]