悬停状态旋翼尾迹边界测量  

Measurement of Wake Geometry of Rotor in Hover

作　　者：陈仁良[1] 明晓[1] 

机构地区：[1]南京航空航天大学,南京210016

出　　处：《空气动力学学报》1997年第4期497-501,共5页Acta Aerodynamica Sinica

摘　　要：介绍了用试验来定量确定悬停状态旋翼尾迹边界的方法，从物理本质分析了悬停状态旋翼尾迹的湍流特性，阐述了如何用热线风速仪来测量尾迹的湍流度并用湍流度来确定奖尖涡的位置和尾迹边界。揭示了悬停状态旋翼尾迹边界的一些特点最后将试验结果与国外的相应研究结果作了比较，发现两者吻合得较好。The paper presents a method measuring the wake geometry of rotor in hover .The turbulence characteristics of wake were analysed. It was elaborated how to measure the wake turbulence with hot-wire anemometer and then determine the blade vortex trajectory and wake geometry. Some characteristics of wake geometry about rotor in hover were revealed. Finally,the test results were compared with those from generalized wake model of Landgreb and Kocurek. It was found that the test results were in good agreement with those of Kocurek's generalized wake model.

关 键 词：旋翼 悬停试验 尾迹 湍流 涡运动 

分 类 号：V211.52[航空宇航科学与技术—航空宇航推进理论与工程]