南京航空航天大学学报2018，Vol.50Issue(2)：173-178,6.DOI:10.16356/j.1005-2615.2018.02.004
多机起降旋翼间气动干扰数值模拟研究
Numerical Simulation of Aerodynamic Interactions Between Multiple Rotors During Take-Off and Landing
牛嵩 1田旭 1徐宝石 1胡偶1
作者信息
- 1. 中国直升机设计研究所,景德镇,333001
- 折叠
摘要
Abstract
The computational fluid dynamics(CFD)method with moving overset grid scheme is used to simulate the aerodynamic interactions between rotors of multiple helicopters during take-off and land-ing.The influences of different distances between rotors and wind velocities on lift coefficients and torque coefficients are analyzed.Numerical results show that compared with the upwind rotor,the aero-dynamic interactions have more influence on the downwind rotor.The aerodynamic interactions lead to the decrease of the lift coefficient and the increase of the torque coefficient for the downwind rotor.The effect of these interactions decreases with the increase of rotor distance and increases with the increase of wind velocity.关键词
气动干扰/旋翼间距/环境风速/直升机旋翼Key words
aerodynamic interaction/distance of rotors/wind velocity/helicopter rotor分类
航空航天引用本文复制引用
牛嵩,田旭,徐宝石,胡偶..多机起降旋翼间气动干扰数值模拟研究[J].南京航空航天大学学报,2018,50(2):173-178,6.
