Internal and external flow decoupling double-waverider high-speed air suction type aircraft and generation method thereof

Abstract

The invention relates to an internal and external flow decoupling double-waverider high-speed air suction type aircraft which comprises an aircraft body, the upper surface of the aircraft body is a Bump front body, the lower surface of the aircraft body is a waverider with a high volume ratio, an air inlet channel, a combustion chamber and a spray pipe are arranged in the aircraft body, and the air inlet channel is an internal waverider air inlet channel with a high external compression ratio. According to the internal and external flow decoupling double-waverider high-speed air suction type aircraft, the air inlet channel and the waverider are arranged on the upper side and the lower side of the aircraft body respectively, and aerodynamic decoupling of a waverider flow field and an air inlet channel inlet flow field is achieved through decoupling on geometric layout; the problems of low design efficiency and large non-design point outer resistance caused by inner and outer flow intensity coupling are avoided, and the aerodynamic design efficiency of the high-speed air suction type aerospace vehicle is remarkably improved; the problems that an existing internal and external flow coupling aircraft is difficult in overall balance weight / moment balance, thrust of the aircraft is reduced when an air inlet channel moves downwards, the flow direction arrangement range of the air inlet channel is limited, and the overall length of the aircraft is limited are effectively solved.

Description

technical field [0001] The invention relates to the technical field of aircraft, in particular to a high-speed air-breathing aircraft with dual waveriders on different sides and a production method thereof. Background technique [0002] In terms of the aerodynamic profile design of hypersonic aerodynamics, traditional aircraft need to rely on the lifting wing load or the flight angle of attack to improve the lift characteristics. Excessive structural strength burden. The concept of the cone-guiding waverider solves the above development difficulties. The waverider configuration is obtained by tracing the streamlines of the conical basic flow field. During flight, a shock wave close to the leading edge of the waverider is formed, and the level flight state A higher lift-to-drag ratio can be obtained. In terms of intake system design, the kiss-cut flow theory simplifies the design of the three-dimensional intake port into a series of two-dimensional kiss-cut surface compress...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a dual waverider high-speed air-breathing aircraft with decoupled internal and external flows, which can effectively solve the difficulties in the overall counterweight / moment balance of the existing internal and external flow coupled aircraft, and the thrust of the aircraft decreases when the air inlet moves downward. The limited range of airway flow direction and the limited overall length of the aircraft

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