The flowfield associated with the underexpanded axisymmetric nozzle freejet flow including the appearance of a Mach disk has been studied. It is shown that the location and size of the Mach disk are governed by the appearance of a triple-point shock configuration and the condition that the central core flow will reach a state of 'choking at a throat'. It is recognized that coalescence of waves requires special attention and the reflected wave, as well as the vorticity generated from these wave interactions, have to be taken accurately into account. The theoretical results obtained agreed well with the experimental data.


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    Title :

    Mach disk from underexpanded axisymmetric nozzle flow


    Contributors:
    Chang, I.-S. (author) / Chow, W. L. (author)

    Published in:

    Publication date :

    1974-08-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Mach Disk from Underexpanded Axisymmetric Nozzle Flow

    I.SHIH CHANG AND W.L. CHOW | AIAA | 1974





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