Experiments were performed to simulate jet plume effects associated with VTOL aircraft in takeoff and cruise modes. A water facility was used to investigate the influence of inclination angle and separation distance on the three-dimensional fountain flowfield generated by two impinging jets operating at a jet Reynolds number of 250,000. Substantial differences in the flow features were observed for different spacings between the jets. Plume effects in cruise mode were simulated by a supersonic unheated jet parallel to a wall. Variation of the distance between the wall and the edge of the plume is shown to have a major controlling effect on the supersonic screech instability.


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    Titel :

    Unsteady Features of Jets in Lift and Cruise Modes for VTOL Aircraft


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Kegelman, J. T. (Autor:in) / Saripalli, K. R. (Autor:in) / Wlezien, R. W. (Autor:in) / Kibens, V. (Autor:in)

    Kongress:

    SAE International Powered Lift Conference and Exposition ; 1987



    Erscheinungsdatum :

    01.12.1987




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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