Abstract A review of helicopter rotor blade tip design technology has been carried out with a view to undertaking subsequent computations to evaluate the performance of new tip designs. The review starts by briefly looking at (fixed) wing tip design concepts and the underlying fluid mechanics on which they are based in order to see if there is any carry-over of ideas on which improved tip design concepts might be based. Then, rotor blade tip shapes that have been used, or suggested for use, on past and present rotorcraft are examined to obtain a better understanding of the helicopter tip design problem. In parallel, the review traces the development of analysis tools to evaluate the performance of the rotor and blade tip design. It is clear that in the past, the designer relied heavily on classical aerodynamic knowledge, supplemented by experience and intuition, supported by wind tunnel and model rotor testing, and relatively low-order aerodynamic calculations. New rotor designs were, and still are the subject of intensive flight test verification. However, recent development of Computational Fluid Dynamics (CFD) now offers an opportunity to accurately predict the viscous, compressible flow-field in the tip region, and thus predict the performance of new rotor and tip designs, provided that the solver has adequate resolution, is able to handle all aspects of the helicopter problem, and sufficient computational resources are available to complete the design in a practical time-scale.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A review of helicopter rotor blade tip shapes


    Beteiligte:
    Brocklehurst, A. (Autor:in) / Barakos, G.N. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2012-01-01


    Format / Umfang :

    40 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    A review of helicopter rotor blade tip shapes

    Brocklehurst, A. | Online Contents | 2013


    HELICOPTER ROTOR BLADE

    NEKRASOV VLADIMIR IVANOVICH | Europäisches Patentamt | 2016

    Freier Zugriff

    HELICOPTER ROTOR BLADE

    EREMIN MIKHAIL MIKHAJLOVICH / BORISOV EVGENIJ ALEKSANDROVICH | Europäisches Patentamt | 2018

    Freier Zugriff

    Helicopter rotor blade

    WANG HUILING / CAI MENG / TIAN SHUQUAN et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Helicopter Rotor Blade Flatter

    Berezovsky, Y. V. / Myagkov, Y. A. | British Library Conference Proceedings | 1995