The additional thrust required to give an aircraft VSTOL capability may be obtained by diverting the exhaust of the cruise engine through a thrust augmenting ejector. The hypermixing nozzle has been developed to increase the rate of jet mixing and thereby improve the performance of the ejector. Since this is achieved at some cost in primary thrust efficiency, comparison tests were performed with a single shroud and three interchangeable nozzles. A one-dimensional analysis is used to compute ideal levels of augmentation and assess the relative importance of the injection losses. It is seen that hypermixing significantly improves ejector performance by making efficient diffusion of the mixed flow possible.


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    Titel :

    Evaluation of hypermixing for thrust augmenting ejectors


    Weitere Titelangaben:

    Auswertung des Hypermischens fuer den Staudruck erhoehende Ejektoren


    Beteiligte:

    Erschienen in:

    Journal of Aircraft ; 11 , 6 ; 348-354


    Erscheinungsdatum :

    1974


    Format / Umfang :

    , 7 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





    Thrust Augmenting Ejectors

    H. Viets | NTIS | 1975


    Thrust augmenting ejectors, II

    ALPERIN, M. / WU, J.-J. | AIAA | 1983


    Thrust Augmenting Ejectors, Part I

    Morton Alperin / Jiunn-Jenq Wu | AIAA | 1983


    Thrust Augmenting Ejectors. Part 1

    M. Alperin / J. J. Wu | NTIS | 1983