In this paper results arc discussed of wind-tunnel smoke tests with a small helicopter rotor. The test apparatus includes a specially developed hot-wire smoke-generator. An attempt is made to describe the flow pattern in the neighbourhood of a helicopter rotor in the vortex ring state by introducing the spread of the slipstream, causing an airbody around the rotor. By considering the proportions of this airbody the unpleasant behaviour of helicopters in the partial power-off descent at low forward speeds can be more clearly understood.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Airflow Patterns in the Neighbourhood of Helicopter Rotors


    Untertitel :

    A Description of Some Smoke Tests Carried out in a Wind-Tunnel at Amsterdam


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    1951-04-01


    Format / Umfang :

    5 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Airflow patterns in neighbourhood of helicopter rotors

    Drees, J.M. / Hendal, W.P. | Engineering Index Backfile | 1951


    Jet-propelled helicopter rotors

    Klemin, A. | Engineering Index Backfile | 1949


    Unsteady Aerodynamics of Helicopter Rotors

    W. P. Jones / W. J. McCroskey / J. J. Costes | NTIS | 1972


    NEW GENERATION OF HELICOPTER ROTORS

    Szumanski, K. / Szumanski, A. / Polskie Stowarzyszenie Wiroplatowe | British Library Conference Proceedings | 2000


    Aero-acoustics of helicopter rotors

    Prieur, J. / Von Karman Institute for Fluid Dynamics | British Library Conference Proceedings | 1996