Abstract This contribution relates to the simulation of the flow around the tip of a helicopter rotor blade in hovering flight conditions. We here propose a new methodology of framework adaptation, using a comprehensive rotor code and high-fidelity numerical simulations. We construct an equivalent fixed-wing configuration from a rotating blade, in which centrifugal and Coriolis forces are neglected. The effect of this approximation on the solution is analyzed. The method is validated by a detailed comparison with wind tunnel data from the literature, concerning aerodynamic properties and tip vortex roll-up. This validation also includes variations of the pitch angle and rotational speed, up to transonic tip velocities. Compared to previously published methods of framework adaptation, the new hybrid method is found to reproduce more accurately the flow around a rotating-blade tip.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Numerical investigation of the vortex roll-up from a helicopter blade tip using a novel fixed-wing adaptation method


    Beteiligte:
    Joulain, Antoine (Autor:in) / Desvigne, Damien (Autor:in) / Alfano, David (Autor:in) / Leweke, Thomas (Autor:in)

    Erschienen in:

    CEAS Aeronautical Journal ; 8 , 2 ; 245-260


    Erscheinungsdatum :

    2017-01-07


    Format / Umfang :

    16 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Numerical investigation of the vortex roll-up from a helicopter blade tip using a novel fixed-wing adaptation method

    Joulain, Antoine / Desvigne, Damien / Alfano, David et al. | Online Contents | 2017


    The Aerodynamics Investigation of Vortex Trap on Helicopter Blade

    Yaakub, M.F. / Wahab, A.A. / Ghafir, M.F.A. et al. | British Library Conference Proceedings | 2012


    The Aerodynamics Investigation of Vortex Trap on Helicopter Blade

    Yaakub, M.F. ;Wahab, A.A. ;Abdul Ghafir, Mohammad Fahmi | Trans Tech Publications | 2012


    High angle of attack helicopter blade-vortex interaction; numerical studies using LES

    Ilie, Marcel / Coronado, Patricia / Velez, Carlos et al. | AIAA | 2011


    Braking differential type rotor wing propeller fixed wing helicopter

    JIANG FUYU | Europäisches Patentamt | 2020

    Freier Zugriff