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.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

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


    Contributors:

    Published in:

    CEAS Aeronautical Journal ; 8 , 2 ; 245-260


    Publication date :

    2017-01-07


    Size :

    16 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    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, Abas Ab / Ghafir, Mohammad Fahmi Abdul et al. | Tema Archive | 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, M. / Coronado, P. / Velez, C. et al. | British Library Conference Proceedings | 2011