加装翼尖小翼的仿生机翼在临近空间的气动性能分析  

The Aerodynamic Performance Analysis of Adding Wing Tip Winglet Bionic Wing in Near Space

作　　者：张冀[1] 陈柏松[1] 华欣[2] 

机构地区：[1]空军航空大学飞行器与动力系,长春130022 [2]空军航空大学航理系,长春130022

出　　处：《重庆师范大学学报（自然科学版）》2015年第6期145-148,共4页Journal of Chongqing Normal University:Natural Science

摘　　要：参照某型在飞无人机采用仿海鸥翼型设计出平直机翼并在其基础上加装翼尖小翼。通过对两种机翼的数值模拟,得出了加装翼尖小翼仿生机翼的气动性能明显优于平直机翼,加装小翼后仿生机翼有效地减小了下洗速度,降低了诱导阻力,使得机翼的气动性能有明显的改善。为无人机机翼的设计提供理论参考。With reference to a certain type of flying drones with imitation airfoil design a seagull flat wings and on the basis of its wing tip winglet in this paper.Through to the numerical simulation of two wings,it is concluded that the bionic wing aerodynamic performance is superior to the conventional airfoil wing,after adding wing tip winglet bionic wings effectively reduced the downwash velocity,reduce the induced drag,and makes the wing aerodynamic performance is improved.Provide theoretical reference for the design of the UAV wing.

关 键 词：仿生 临近空间 翼尖小翼 气动阻力 数值仿真 

分 类 号：V221.41[航空宇航科学与技术—飞行器设计]