共轴式双旋翼诱导速度的PIV水洞试验研究  

Experimental Investigation of Coaxial-Rotor Induced Velocity in Water Tunnel Using PIV

作　　者：胡增龙[1] 邓彦敏[1] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100083

出　　处：《飞机设计》2008年第1期10-15,共6页Aircraft Design

摘　　要：采用PIV(粒子图像测速)技术,对共轴式双旋翼在悬停和以不同速度前飞时的流场进行水洞试验,测量得到旋翼流场的速度和涡量分布,主要研究了共轴式双旋翼流场的垂向诱导速度沿径向的分布规律。为了比较,对单旋翼也进行了测量。试验结果对共轴式直升机的气动计算和合理设计具有重要意义。Particle Image Velocimetry technique is applied to the experiment of coaxial-rotor in hover and in level flight in water tunnel. Velocity vectors and vortex contours of the rotor flow fields are measured, The radial distribution of vertical induced velocity of coaxial-rotor flow fields is mainly investigated. For comparison, single-rotor is also measured, The experimental results have important meaning to the aerodynamic calculation and reasonable design of coaxial-rotor helicopter,

关 键 词：共轴式直升机 旋翼流场 诱导速度 水洞 PIV 

分 类 号：V211.41[航空宇航科学与技术—航空宇航推进理论与工程]