The transonic induction driven wind-tunnel T2, with a testing section of 38 x 40 square cm pressurized up to 6 bars was transformed into a cryogenic system in 1981. The airflow cooling is provided by a parietal injection of liquid nitrogen in the wind-tunnel. An internal insulation preserves most of the tunnel elements and works with runs which last until one minute. The method used for the run starting and the automatic control of the airflow parameters is described. A simplified process model allows a mini-computer centralizing all useful data to generate in real time the commands to initate and stabilize the desired temperature and pressure values. The results defining the installation performances and airflow qualities are presented.


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    Title :

    Studies on the Cryogenic Induction Driven Wind-Tunnel T2


    Contributors:
    J. L. Gobert (author) / A. Mignosi (author)

    Publication date :

    1982


    Size :

    19 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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