Double waverider high-speed air-breathing vehicle with decoupled internal and external flow and its generation method

Abstract

The invention relates to a double waverider high-speed air-breathing aircraft with decoupled internal and external flows, comprising an aircraft body, the upper surface of the aircraft body is a Bump precursor, the lower surface is a waverider with a high volume ratio, and an air intake is arranged inside the aircraft body Road, combustion chamber and nozzle, the intake port is a high external compression ratio internal waverider intake port. The dual waverider high-speed air-breathing aircraft provided in the above technical solution decouples the internal and external flows. The air intake and the waverider are respectively placed on the upper and lower sides of the aircraft body. Through the decoupling of the geometric layout, the flow of the waverider is realized. The aerodynamic decoupling of the air flow field and the inlet flow field avoids the problems of low design efficiency and large external resistance at non-design points caused by the strong coupling of internal and external flows, and significantly improves the aerodynamic design efficiency of high-speed air-breathing aerospace vehicles; effectively It solves the problems of difficulty in overall counterweight / moment balance of existing internal and external flow coupling aircraft, reduction of aircraft thrust when the intake port moves downward, limited range of air intake flow direction layout, and limited overall length of the aircraft.

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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