A flow visualization study of several configurations of a jet-powered vertical takeoff and landing (VTOL) aircraft model during hover in ground effect was conducted. A surface oil flow technique was used to observe the flow patterns on the lower surfaces of the model. There were significant configuration effects. Wing height with respect to fuselage, the presence of an engine inlet duct beside the fuselage, and nozzle pressure ratio are seen to have strong effects on the surface flow angles on the lower surface of the wing. This test was part of a program to improve the methods for predicting the hot gas ingestion (HGI) for jet-powered vertical/short takeoff and landing (V/STOL) aircraft. The tests were performed at the Jet Calibration and Hover Test (JCAHT) Facility at Ames Research Center.


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    Titel :

    Flow Visualization Studies of VTOL Aircraft Models During Hover in Ground Effect


    Beteiligte:
    N. J. Mourtos (Autor:in) / S. Couillaud (Autor:in) / D. Carter (Autor:in) / C. Hange (Autor:in) / D. Wardwell (Autor:in)

    Erscheinungsdatum :

    1995


    Format / Umfang :

    48 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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    Mourtos, Nikos J. / Couillaud, Stephane / Carter, Dale et al. | NTRS | 1995


    Some fundamentals for efficient VTOL aircraft hover control

    Hill, T.G. | Engineering Index Backfile | 1966


    Analysis of spread multi-jet VTOL aircraft in hover

    Albang, L. F. / Roberts, A. S. | NTRS | 1974


    Synthesis of hover autopilots for rotary-wing VTOL aircraft

    Hall, W. E. / Bryson, A. E., Jr. | NTRS | 1972


    Analysis of Spread Multi-Jet VTOL Aircraft in Hover

    L. F. Albang / A. S. Roberts | NTIS | 1974