摘要
临近空间排翼式升浮一体飞艇是运行在临近空间环境,由水平、垂直方向具有一定几何间隔的两个艇翼连接两个囊体构成的新型低速飞行器。本文通过研制附加支架,使用一种低雷诺数风洞测量了两个对称翼型在水平、垂直方向相对位置、雷诺数、迎角等参数变化的情况下,前翼型模型对后翼型模型的升力和阻力系数干扰值的定量结果;对其变化规律进行了总结,并通过自由飞模型对由实验数据推导出的前、后机翼间的气动干扰进行验证,得出一些对排翼式布局飞行器总体设计有指导意义的经验数据与结论。
Near space tandem-wing lift and buoyancy incorporated airship is a kind of low speed aircraft operating in near space environment. By adding the self-developed bracket, a frontal airfoil model＇s quantitative aerodynamic interferences of lift and drag coefficients on a back airfoil model were measured in a low Reynolds number wind tunnel. The parameters include the spatial interval between the two airfoil models, Reynolds number, angle of attack. Some valuable conclusions have been validated through free-flight tests and summarized to guide the tandem-wing layout aircraft design.
出处
《实验流体力学》
CAS
CSCD
北大核心
2009年第3期58-64,共7页
Journal of Experiments in Fluid Mechanics
关键词
临近空间
低雷诺数
排翼布局
气动干扰
升浮一体飞艇
风洞试验
near space
low-Reynolds number
tandem-wing
aerodynamic interference
lift and buoyancy incorporated airship
wind tunnel test
