A new method for predicting rotor wake in low speed and hovering flight is described to investigate the motion of the helical tip vortex. Beginning with the generalized wake model, a semi-empirical correction for the vortex core effect on rotor wake is made and free wake calculation is carried out. As an example of its engineering application, the calculated downwash velocity field along the rocket launch line is presented and simply analysed. In terms of theory, the method developed here may provide of a referable basis for further study the formation mode of the tip vortex and vortex core interior structure.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A new method for predicting rotor wake geometries and downwash velocity field


    Beteiligte:
    Cao, Yihua (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1999-04-01


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Helicopter Rotor Downwash Calculation using the Vortex Element Method for the Wake Modelling

    Papanikas, D. G. / Spyropoulos, A. J. / Fertis, D. K. et al. | British Library Conference Proceedings | 1996


    Helicopter Rotor Downwash Calculation using the Vortex Element Method for the Wake Modelling

    Papanikas, D. G. / Spyropoulos, A. J. / Fertis, D. K. et al. | British Library Online Contents | 1996


    A Method for Calculating Rotor Downwash Velocity Along the Rocket Launch Line

    Cao, Y. H. / Beijing University of Aeronautics and Astronautics | British Library Conference Proceedings | 1994


    The unseen hazard of rotor downwash

    Negrette, A. | Tema Archiv | 1992