The invention relates to an annular reverse composite jet flow resistance reduction shock wave needle of an aircraft, and belongs to the field of resistance reduction of aircrafts. Comprising an inner column and an outer frame. Wherein the inner column is of a column body structure; the inner column is axially and horizontally mounted at the head end of an external aircraft; the outer frame is of a cylindrical structure; the outer frame is axially and horizontally mounted at the head end of an external aircraft; the outer frame sleeves the outer wall of the inner column, and the inner column and the outer frame are coaxially arranged; the axial lengths of the inner column and the outer frame are the same; the wall surface pressure of the head of the projectile body is reduced, so that the shock wave resistance of the whole projectile is reduced, and the purpose of overall resistance reduction is achieved; the annular nozzle saves consumption of high-pressure gas, energy consumption is reduced while the drag reduction effect is guaranteed, and space is saved for the interior of the aircraft.

    本发明涉及一种飞行器环形逆向复合喷流减阻激波针,属于飞行器的减阻领域;包括内柱和外框;其中,内柱为柱体结构;内柱轴向水平安装在外部飞行器的头端;外框为筒状结构;外框轴向水平安装在外部飞行器的头端;外框套装在内柱的外壁,且内柱和外框同轴设置;内柱和外框的轴向长度相同;本发明使弹体头部壁面压力降低,从而减小全弹激波阻力,达到整体减阻的目的;环形喷口节省高压气体消耗量,在保证减阻效果的同时减少能量消耗,为飞行器内部节省空间。


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    Title :

    Aircraft annular reverse composite jet anti-drag shock wave needle


    Additional title:

    一种飞行器环形逆向复合喷流减阻激波针


    Contributors:
    LIU SIJIA (author) / FENG FENG (author) / YAN MING (author)

    Publication date :

    2024-03-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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