The invention provides an airfoil profile combination for a morphing aircraft. The airfoil profile combination comprises a transonic flight dominant airfoil profile, a supersonic flight dominant airfoil profile and a hypersonic flight dominant airfoil profile. The lift-drag characteristics of the three airfoils with different flight advantages in respective cruise flight states are superior to those of a reference airfoil NACA64A-204. Under respective cruise flight states, lift-drag ratio characteristics and lift coefficients under different angles of attack are improved, and the three airfoils can be mutually changed through the airfoil deformation mechanism, so that the optimal flight performance can be realized under different speed domains according to different flight states. Therefore, the airfoil profile combination for the morphing aircraft provided by the invention can be used for speed-domain-crossing flight of the morphing aircraft, and is an airfoil profile variant solution for speed-domain-crossing flight of the morphing aircraft.
本发明提供一种用于变体飞行器的翼型组合,包括跨声速飞行优势翼型、超声速飞行优势翼型和高超声速飞行优势翼型。三种具有不同飞行优势的翼型,在各自巡航飞行状态下的升阻特性优于基准翼型NACA64A‑204。在各自巡航飞行状态下,不同迎角下的升阻比特性和升力系数都各有提升,且可以通过翼型变形机构使三种翼型之间相互变化,从而可以根据不同飞行状态在不同速域下实现飞行性能最优。因此,本发明提供的一种用于变体飞行器的翼型组合,可用于变体飞行器跨速域飞行,是一种变体飞行器跨速域飞行的翼型变体解决方案。
Airfoil profile combination for morphing aircraft
一种用于变体飞行器的翼型组合
2024-01-23
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |