碟形升力体低速气动性能风洞试验研究

Low-speed Aerodynamic Performance Wind Tunnel Tests of the Saucer-shaped Lifting Body

升力体布局常见于航天器的设计中,在低速领域较少应用;但其紧凑的布局,巨大的升力体面积,充足的载物空间,翼身一体化的设计思想,都使具有在种类繁多、功能多样的无人机领域获得广泛应用的潜力。设计了一种碟形升力体,并对其低速气动性能进行了风洞试验研究,获得了其升力、阻力、升阻比特性和静稳定特性的试验数据,并对其进行了分析。试验结构表明,碟形升力体具有较好的气动性能,已经具备一定的实用性。还以碟形升力体的研究结论为依据,对低速升力体的特点及其在无人机领域的应用前景进行了分析和论述。

The lifting body aircraft is usually used in the spacecraft design,rarely used in the low speed condition.With the compact layout,huge lift surface,sufficient payload space and the wing-fuselage integration,the lifting body aircraft has the potential of being widely adopted for the various unmanned aerial vehicle designs.A saucer-shaped lifting body was designed,and its low speed aerodynamic performance including lift,drag,lift to drag ratio,and the static stability,were investigated by wind tunnel tests.Analyses of the wind tunnel tests results were done.The analyses prove that the saucer-shaped lifting body has a good aerodynamic performance.The application of low speed lifting body in unmanned aerial vehicle field is also discussed based on the investigation conclusions of the sauce-shaped lifting body.