Data relating to downwash impingement occurring in VTOL aircraft and helicopters are examined; interaction of nonuniform flow in ground boundary layer with bluff ground particles produces lift force which equals or exceeds particle weight; viscous decay, inviscid flow field, ground boundary layer, and forces on bluff body in nonuniform flow are examined; criteria established for particle entrainment in vicinity of impinging-jet stagnation point provide basis for scaling experimental results to variety of full-scale situations.


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    Titel :

    Aerodynamic processes in downwash-impingement problem


    Weitere Titelangaben:

    J Aerospace Sciences


    Beteiligte:
    Vidal, R.J. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1962


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :



    Downwash impingement

    PAMADI, B. N. | AIAA | 1980


    Downwash Impingement Design Criteria for VTOL Aircraft

    M. M. George / A. A. Perlmutter / L. J. Butler | NTIS | 1964


    Downwash

    Online Contents | 1999