According to the resistance-reducing and heat-reducing self-adaptive device for the head of the hypersonic aircraft, the pneumatic rod and a sweating and cooling device are combined, when the aircraft flies at the supersonic speed, shock waves at the front edge of a nose cone are pushed away from the wall face through the pneumatic rod so that the resistance-reducing effect can be achieved, pressure and heat flow at the front edge of the nose cone are reduced, and the service life of the aircraft is prolonged. A sweating cooling medium can flow out of the ceramic-based porous material more easily, so that the problem of low stationary point cooling efficiency in sweating cooling is solved; cooling medium water is in a liquid state in the connecting pipeline, the coolant micropore storage tank and the inner cavity of the nose cone shell, after entering the ceramic-based porous material, the cooling medium water absorbs heat in the ceramic-based porous material, is heated and subjected to phase change, then flows out of the ceramic-based porous material and continuously flows downstream, an air film is formed on the surface of the area of the nose cone shell, and the heat reduction effect is achieved. Moreover, along with the change of incoming flow pressure, the pneumatic rod can adaptively adjust the extension length to adjust the drag reduction effect, and sweating cooling can also adaptively adjust the flow of a coolant to adjust the heat reduction effect at the same time.

    本发明提供了一种高超声速飞行器头部减阻降热自适应装置,将气动杆与发汗冷却两种减阻降热装置相结合,在飞行器超声速飞行时,气动杆将鼻锥前缘的激波推离壁面以实现减阻效果,降低了鼻锥前缘处的压力、热流,使得发汗冷却介质更易从陶瓷基多孔材料处流出,解决了发汗冷却中驻点冷却效率低的问题;冷却介质水在连接管路、冷却剂微孔储罐以及鼻锥壳体内部腔体内均为液态,进入陶瓷基多孔材料后,在其内部吸热升温并相变后流出多孔材料,然后继续向下游流动,并在鼻锥壳体区域表面形成气膜,实现降热效果;并且,随着来流动压的变化,气动杆可自适应调节伸出长度以调节减阻效果,发汗冷却也会同时自适应调节冷却剂流量以调节降热效果。


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    Title :

    Self-adaptive device for reducing resistance and heat of head of hypersonic flight vehicle


    Additional title:

    一种高超声速飞行器头部减阻降热自适应装置


    Contributors:
    LEI JUANMIAN (author) / GUO JIAN (author) / ZHANG LINGYUN (author) / SUN GUOYOU (author) / ZHANG BOQIAN (author)

    Publication date :

    2024-02-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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