一种采用氦气球带飞的高速模型飞行试验方法探索  

A new high speed model flight test scheme carried by helium balloon

作　　者：邵元培[1,2] 程焰青 何开锋[1,2] 余永刚[2] 周宇[1,2] 

机构地区：[1]空气动力学国家重点实验室,四川绵阳621000 [2]中国空气动力研究与发展中心计算空气动力研究所,四川绵阳621000

出　　处：《空气动力学学报》2017年第5期727-731,741,共6页Acta Aerodynamica Sinica

基　　金："十三五"装备预研项目(513130303)

摘　　要：目前高亚声速以及超声速模型飞行试验存在的困难主要是动力系统难以提供足够推力和短周期自由振荡频率急剧升高等。本文以一典型战斗机为例作了剖析,从剖析结果来看,在高速模型飞行试验中,模型缩尺比例K是最关键的参数。在中国空气动力研究与发展中心设计的翼身融合飞行器C2基础上,探讨了一种新的高速模型飞行试验方法:采用氦气球带飞,自22km高度投放实现超声速飞行,最大飞行速度达到马赫数1.18,这种采用重力克服发动机能力不足的思路是值得深入研究的,按照这种思路,完成了马赫数0.85的6g过载的高能量机动仿真。Model flight test is one of the important methods in aerodynamic research and has become a low-risk and effective technical approach fo r aerodynamic study and fo r demonstration and validation of aerodynamic configuration. Nowadays the technology of low speed model f l ig h t test becomes more mature but there are s t i l l some severe technical problems in high speed modelflight test,especially in supersonic model f l ig h t te s t,such as insufficient engine th ru st and sharp increment of short period oscillation frequency. A typical battleplane as an example. It can be seen that the scale number K is the key parameter. Based on a BWB （blended C2 designed by China Aerodynamic Research and Development Center （ CARDC ）, a newsupersonic model f l ight test scheme is investigated in this paper. The BWB aircraft was carried to 22km high by a giant helium balloon and then droped,the maximum flight Mach number reached 1.18, the thought using gravity to overcome shortcomings of insufficient engine thrustiswor thy of recognition.

关 键 词：典型战斗机 翼身融合飞行器 高速模型飞行试验 

分 类 号：V217[航空宇航科学与技术—航空宇航推进理论与工程]