The characteristics of fountains below hovering multi-nozzle VTOL vehicles have been determined from experimental data. Specifically, the thermodynamic and entrainment parameters of the fountain core, and the effects of the blocking surface on the fountain and of the fountain on ground jet entrainment are presented. The fountain-related interference effects are also discussed. It is found that the thermodynamic characteristics of the fountain are significantly higher than predicted, that the interference effects are of the same magnitude as the fountain-coreproduced forces, and that the fountains lose mass or have negative entrainment characteristics under certain conditions. (Kursetz)


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Aerodynamic and thermodynamic characteristics of flow fields below VTOL vehicles in ground proximity


    Weitere Titelangaben:

    Aerodynamische und thermodynamische Charakteristik von Stroemungsfeldern unter Senkrechtstartflugzeugen bei Grundnaehe


    Beteiligte:
    Karemaa, A. (Autor:in) / Weber, H.A. (Autor:in) / Smith, C.W. (Autor:in)

    Erschienen in:

    AIAA-Papers ; Jan ; 1-14


    Erscheinungsdatum :

    1979


    Format / Umfang :

    14 Seiten, 37 Bilder, 8 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Ground proximity and VTOL aircraft

    Colin, P.E. | Engineering Index Backfile | 1962



    Aerodynamic characteristics in ground proximity

    Thomas, J. L. / Hassell, J. L., Jr. / Nguyen, L. T. | NTRS | 1976