An empirical model applicable to blast fields generated by recoilless rifles in a free-field environment yields reasonable predictions of transient overpressure resulting from rocket exhaust blast. A second model of the recoilless rifle type is presented for conditions where reflecting surfaces are present. Using the free-field model, the upper bounds of pressure can be predicted at fixed points knowing the rocket chamber pressure and its nozzle exit diameter. (Author)


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    Title :

    Prediction and Measurement of Overpressures from Rocket Motor Blast Waves on Helicopter Surfaces


    Contributors:

    Publication date :

    1971


    Size :

    36 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English