Aerodynamic Layout Design On Deformation Of Waverider In Full Speed Domain

The waverider is a kind of hypersonic aircraft with superior aerodynamic characteristics,The shock wave is attached to the underside of the aircraft.The shock wave generates pressure to provide lift,making the waverider have an unique performance of high speed,high altitude,long cruising distance and strong penetration ability compared with other hypersonic vehicles.In order to improve the flight performance of the low-speed environment of the aircraft and achieve the goal of good aerodynamic performance in the full speed range.Based on the full-waverider design method,the aerodynamic layout design of the aircraft variant is carried out.Firstly,this paper reviews the research status on three aspects of the design of the waverider,the design of the variant aircraft and the new wide-speed spacecraft.The research on the method of hypersonic aerodynamics and the numerical simulation of the subsonic conditions of the aircraft are carried out.Secondly,this paper analyzes the aerodynamic performance of the full-waverider aircraft in wide-speed.Two variants of the variable swept design and the variable wing surface design are proposed.The former design achieves the goal of full-speed flight by changing the sweep angle to adapt to changes in the flight environment.The latter is designed by the low-speed airfoil.The upper surface of the aircraft improves the aerodynamic performance of the flying aircraft in low speed environments.Finally,the aerodynamic layout design of the passenger aircraft is carried out.The left and right ailerons are designed as the elevator surface to control the pitch channel.The single vertical tail design can control the heading and make the aircraft The course is stable.Through numerical simulation analysis,the results show that the deformation method adopted in this paper can significantly improve the aerodynamic performance of the full-waverider in low speed conditions.The ideas and methods can provide a new idea and reference for the design of the variant aircraft.