直升机下降过程中的旋翼入流模型比较研究  

Comparative Research of Rotor Inflow Model When Helicopter Descending

作　　者：马鸿儒[1] 孙文胜[1] 何志良[1] 

机构地区：[1]海军航空工程学院青岛分院,青岛266041

出　　处：《价值工程》2011年第32期299-300,共2页Value Engineering

摘　　要：直升机下降过程中旋翼周围流场复杂,尤其是涡环等工作状态下气流变化情况难以预测。简要介绍了几种入流模型,阐述了各自特点并对直升机下降时旋翼诱导速度和入流变化进行了仿真。分析了旋翼工作状态和在各工作状态中旋翼周围气流变化和对旋翼产生的影响。The inflow field around helicopter rotor is complex,and the stream change in vortex ring state or other work state is especially unpredictable.Several inflow modal proposed are introduced with their feature being described,and the induced velocity and inflow of rotor when helicopter descending are emulated.The work states of rotor are analyzed,as well as the stream change around rotor and their influence on the rotor.

关 键 词：直升机旋翼 入流模型 诱导速度 涡环状态 

分 类 号：V212.4[航空宇航科学与技术—航空宇航推进理论与工程]