The invention discloses a method and a device for controlling transonic-speed buffering by tangential narrow-slit gas blowing. The method is characterized in that a shrinkage tube or a shrinkage/expansion tube is adopted to blow gas to transonic-speed shock wave positions of various wings at an outlet end of the shrinkage tube or the shrinkage/expansion tube and positions parallel to various wing surfaces to control transonic-speed buffering, wherein starting from the most downstream position of the shock wave location, the gas-blowing positions are gradually moved towards the upstream and certainly exceed the most upstream position of the shock wave location until nearly close to a front edge position; within the range, control effect of the gas-blowing positions on buffering is reached by virtue of a test or a numerical simulation method, and optimized positions are obtained. According to the invention, with the goal of delaying a transonic-speed buffering boundary and slowing down buffering load, a tangential narrow-slit gas blowing control method taking the shrinkage tube or the shrinkage/expansion tube as a gas-blowing device has the advantages of being simple in device, relatively small in disturbance on flow fields, smoothly transitional, free of separation flow and capable of reducing energy loss.


    Access

    Download


    Export, share and cite



    Title :

    Method for controlling transonic-speed buffering by tangential narrow-slit gas blowing and gas blowing device


    Contributors:
    DANG HUIXUE (author)

    Publication date :

    2015-12-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



    Transonic Buffet Control by Tangential Jet Blowing

    Soudakov, Vitaly / Petrov, Albert / Potapchik, Alexander et al. | AIAA | 2017


    Effects of Tangential Blowing on High-Speed Jets

    Debiasi, M. / Tsai, H. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2007


    Effects of Tangential Blowing on High-Speed Jets

    Debiasi, Marco / Tsai, Her Mann | AIAA | 2007


    NUMERICAL OPTIMIZATION OF FLOW CONTROL BY TANGENTIAL JET BLOWING ON TRANSONIC AIRFOIL

    Abramova, K. A. / Soudakov, V. G. | British Library Conference Proceedings | 2018


    A theory for tangential fuselage blowing

    TAVELLA, DOMINGO | AIAA | 1991