The invention discloses a supersonic air inlet channel arranged under the abdomen. Comprising a supersonic air inlet channel front body compression face (2) located on the lower belly of a supersonic missile body (1), and an air inlet channel body is connected to the rear portion of the supersonic air inlet channel front body compression face (2). A coordinate system is established on the symmetry plane of the supersonic missile body (1), the XY coordinate plane is the symmetry plane, and the X axis, the Y axis and the Z axis are the heading direction, the vertical direction and the transverse direction respectively; the supersonic air inlet channel front body compression surface (2) is in a variable curved surface design, three-level local isentropic compression is adopted in the X-axis direction, and corresponding compression angles delta 1, delta 2 and delta 3 are designed according to equal-strength compression. A missile belly lower air inlet layout form is adopted, the space of a missile head can be made, installation of components such as a guide head is facilitated, meanwhile, the flowing direction of low-energy flow of a boundary layer can be effectively changed through the variable-curved-surface compression surface design, the low-energy flow of the boundary layer can be effectively eliminated, and the performance of an air inlet channel is improved.

    本发明公开了一种腹下布局超声速进气道。包括位于超声速导弹躯体(1)下腹的超声速进气道前体压缩面(2),超声速进气道前体压缩面(2)后方接进气道主体;在超声速导弹躯体(1)对称面上建立坐标系,其中:XY坐标平面为对称面,X、Y、Z轴分别为航向、竖向、横向;超声速进气道前体压缩面(2)为变曲面设计,其沿X轴方向采用三级局部等熵压缩,对应的各压缩角δ1、δ2、δ3按等强度压缩设计。本发明采用导弹腹下进气布局形式,可让出导弹头部空间,有利于导引头等元器件安装,同时变曲面压缩面设计可有效改变附面层低能流流动方向,有效排除附面层低能流,提升进气道性能。


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    Title :

    Supersonic air inlet channel arranged under abdomen


    Additional title:

    一种腹下布局超声速进气道


    Contributors:
    WAN LIYING (author) / ZHOU XIAOHUA (author) / LU JIE (author) / LIU TAO (author) / REN ZHIWEN (author) / ZHAO SHENGHAI (author) / AN PING (author) / QU DONGPING (author) / TONG JIAHUI (author) / WANG CHUNLI (author)

    Publication date :

    2023-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F42B EXPLOSIVE CHARGES, e.g. FOR BLASTING , Explosive Ladungen, z.B. für Sprengungen / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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