Fixed plane wave rider design method based on osculating cone theory

A design method and waverider technology, applied in ground installations, special data processing applications, full-wing aircraft, etc., can solve problems such as poor longitudinal stability and poor low-speed performance, and achieve improved flexibility, improved low-speed performance, Guaranteed efficiency

Active Publication Date: 2018-04-27
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical solution of the present invention is to establish the relationship between the shape plane contour line and the design curve in the design method of the close cone waverider, and describe the waverider by specifying the plane

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  • Fixed plane wave rider design method based on osculating cone theory
  • Fixed plane wave rider design method based on osculating cone theory
  • Fixed plane wave rider design method based on osculating cone theory

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Embodiment Construction

[0046] The design principle of the present invention: according to several elements and assumptions in the close cone method, the corresponding relationship between the shock wave outlet line, the streamline tracing starting line and the waverider plane shape contour line is deduced, and the numerical value is given Solution. According to this relational expression, the plane shape contour design shape of the waverider can be set, that is, the plane shape can be customized, and the rationally designed waverider with a fixed plane shape, such as double-swept shape, S-leading edge waverider, etc., in low-speed performance , Longitudinal stability has performance advantages.

[0047] First, a brief introduction to the design principle of the close conical waverider is given, such as figure 1 As shown, ICC is the exit profile of the shock wave. Take a point on the ICC curve as the tangent line, and the plane perpendicular to this tangent line is called the close plane. According ...

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Abstract

A fixed plane wave rider design method based on an osculating cone theory includes the following steps that (1), the relational expression shown in the patent among a wave rider front edge sweep backangle lambada, ICC and FCT is established; and (2), according to the relational expression obtained through the first step, the front edge of a wave rider is designated to be a straight line with thefixed chamber of lambada, one of ICC and FCT is given, in other words, delta1 or delta2 is known, distribution of delta1 or delta2 is obtained, and then the outline of the wave rider is generated through a traditional osculating cone method.

Description

technical field [0001] The invention relates to the field of layout aerodynamic design of a hypersonic vehicle, especially the layout form of a waverider. Background technique [0002] The high-lift supersonic / hypersonic shape has always been the relentless pursuit of human beings. According to the hyperbolic characteristics of hypersonic inviscid flow, the aerodynamic performance of the aircraft can be improved to a large extent, and the waverider is a typical shape that utilizes this characteristic. The waverider divides the high-pressure aerodynamics on the lower surface of the aircraft by attaching the shock wave to prevent flow leakage, effectively breaking through the lift-drag barrier of the hypersonic aircraft, and has a high lift-to-drag ratio. After decades of development, the waverider has gradually developed from a single configuration in the early stage to a complex configuration with different characteristics, especially the proposal of the close cone method, ...

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Application Information

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IPC IPC(8): B64F5/00
CPCB64F5/00B64C1/0009G06F30/15B64C39/10B64C30/00B64C2039/105G06F2111/10
Inventor 刘传振白鹏周伟江杨云军
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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