To optimize the performance of a tube launched rocket system, the mechanism which generates the flow in the annular gap must be accurately modeled during the system design phase. The present program defines the exhaust plume which results when an underexpanded, supersonic steam exhausts into quiescent air. The free plumes of three different nozzle geometrical configurations are compared with theoretical method-of-characteristic solutions. The results are a foundation upon which the tube-launched rocket designer may base decisions regarding the fabrication of hardware which will successfully control the flow in the annular gap. The report also discusses the current attributes and shortcomings of the University's numerical codes and provides a range of empirical data with which to evaluate future developments in the codes and to make assessments of continued rocket system advancements. (Stoehr)


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    Title :

    Study of the exhaust plume for highly underexpanded supersonic nozzles exhausting into quiescent air


    Additional title:

    Untersuchung der Abgasstroemung von unterexpandierten Ultraschallduesen beim Ausstoss in freie Luft


    Contributors:

    Published in:

    Publication date :

    1979


    Size :

    76 Seiten


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English







    Base Flow/Underexpanded Exhaust Plume Interaction in a Supersonic External Flow

    Bannink, W. / Houtman, E. / Bakker, P. et al. | British Library Conference Proceedings | 1998