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


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

    Kongress:

    International Powered Lift Conference and Exposition ; 1987 ; Santa Clara, CA, United States


    Erscheinungsdatum :

    01.01.1988


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


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

    Kegelman, J. T. / Saripalli, K. R. / Wlezien, R. W. et al. | SAE Technical Papers | 1987


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