A three-component stress-wave force-balance for a large scramjet has been designed, calibrated and tested in the HYPULSE reflected shock tunnel at GASL Inc., New York. The scramjet model is over 3-foot long and weighs in excess of 90 Ibm. The stress-wave force-balance is comprised of three stress bars which are attached to the model. Calibration results indicate that the force balance responds well within about 1 ms and that the sensitivity of the balance to the distribution of load is not large. Results with and without fuel injection were obtained in the tunnel operated for Mach 7 and Mach 10 flight simulation. These tests showed the force-balance can resolve axial force increments due to combustion of about 40 lb in the presence of model lift forces of 500-700 lb.


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    Title :

    Three-Component Force Measurements on a Scramjet in a Reflected-Shock Tunnel


    Contributors:
    Tsai, C.-Y. (author) / Bakos, R. J. (author) / Mee, D. J. (author)


    Publication date :

    1998-12-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English





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