A combination of computer analysis and scale model testing was utilized to develop a nozzle which would increase the performance of thrust augmenting ejectors. Scale model tests were conducted on various multi-lobed and vortex generating nozzles. Predicted jet characteristics were obtained by calculating a finite difference solution of Reynolds equations for the three-dimensional flow field. A two-equation turbulence kinetic energy model was used for closure. It is demonstrated that the thrust augmentation of the XFV-12A ejector can be increased from 1.45 to 1.64 by the addition of lobes to the baseline nozzle, and a corresponding increase of throat width.


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    Titel :

    Ejector Nozzle Development


    Beteiligte:
    E. J. Schum (Autor:in) / J. H. DeHart (Autor:in)

    Erscheinungsdatum :

    1982


    Format / Umfang :

    25 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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