This paper presents a summary of principal results obtained from crossflow tests of a model 15-in.-diam lift fan installed in a wing in the NASA Lewis Research Center, 9 by 15 ft V/STOL Propulsion Wind Tunnel. Tests were run with and without exit louvers over a range of tunnel air speeds, fan speeds, and wing angle of attack. Fan thrust in crossflow was influenced by two principal factors: the effects of inflow distortion on blade-row performance, and changes in fan stage operating point brought about by changes in back pressure ratio. In this particular fan, flow separation on the inlet bellmouth did not appear to be a serious problem for crossflow operation.


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    Titel :

    Performance characteristics of a model VTOL lift fan in crossflow.


    Beteiligte:
    Lieblein, S. (Autor:in) / Yuska, J. A. (Autor:in) / Diedrich, J. H. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.03.1973


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Performance characteristics of a model VTOL lift fan in crossflow.

    LIEBLEIN, S. / YUSKA, J. A. / DIEDRICH, J. H. | AIAA | 1973





    Jet lift VTOL

    O'Malley, Jr., J.A. | Engineering Index Backfile | 1959