Hypersonic bipyramid waverider gliding aircraft and aerodynamic configuration design method

Abstract

The invention discloses a hypersonic-speed double-cone waverider-like gliding aircraft and an aerodynamic configuration design method. The aerodynamic configuration comprises double-cone upper and lower surfaces, a double-cone profile, fillet transition between an upper body and a lower body and arrangement of a control rudder. The upper surface molded line and the lower surface molded line of the bipyramid are superposition of a CST curve and an exponential function, the contour line of the bipyramid is the exponential function, a fillet curve between the upper surface molded line and the lower surface molded line is transformation of a standard equation of a circle, and the control plane molded line is superposition of the CST curve, the standard equation of the circle and a linear function. The aerodynamic configuration obtained through adoption of the design method has typical characteristics of aerodynamic layout of a real aircraft and is suitable for flying in a near space with a high Mach number, the control rudder can be contracted in the double cones and popped out when needed, and the stability under high-altitude extremely-high-speed flying is improved. The whole aerodynamic configuration can be completely analyzed and described by a mathematical expression, the shape of the aircraft can be conveniently and quickly changed according to design requirements, and the iteration requirement of the optimization design of the aircraft on the aerodynamic configuration is met.

Description

technical field [0001] The invention relates to a hypersonic double-cone waverider gliding aircraft and an aerodynamic shape design method, belonging to the technical field of aircraft optimization design. Background technique [0002] After the hypersonic gliding vehicle reaches the high altitude with the booster rocket, it performs unpowered gliding flight at high altitude at extremely high speed. Smooth flight. When optimizing the shape of the aircraft for aerodynamic design, iterative design of the aerodynamic shape is required. In order to change the shape of the aircraft conveniently and quickly, it is necessary to carry out parametric modeling of the aircraft, and the parameters selected for modeling must have certain physical meanings, so that the optimized shape is more accurate. close to actual needs. In addition, the aerodynamic performance of traditional single-cone gliding vehicles is significantly reduced when flying at high altitudes and extremely high speed...

AI Technical Summary

Problems solved by technology

In addition, the aerodynamic performance of the traditional single-cone gliding vehicle is significantly reduced when flying at high altitude and high speed. In order to make the hypersonic vehicle also have good aerodynamic performance when gliding at high altitude and high Mach number, it is necessary to explore new aerodynamic shapes.

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