Extension of a discontinuous Galerkin finite element method to viscous rotor flow simulations

H. van der Ven, O.J. Boelens, O.J. Boelens, C.M. Klaij, Jacobus J.W. van der Vegt

    Research output: Book/ReportReportProfessional

    2 Citations (Scopus)
    25 Downloads (Pure)

    Abstract

    Heavy vibratory loading of rotorcraft is relevant for many operational aspects of helicopters, such as the structural life span of (rotating) components, operational availability, the pilot's comfort, and the effectiveness of weapon targeting systems. A precise understanding of the source of these vibrational loads has important consequences in these application areas. Moreover, in order to exploit the full potential offered by new vibration reduction technologies, current analysis tools need to be improved with respect to the level of physical modeling of flow phenomena which contribute to the vibratory loads. In this paper, a computational fluid dynamics tool for rotorcraft simulations based on first-principles flow physics is extended to enable the simulation of viscous flows. Viscous effects play a significant role in the aerodynamics of helicopter rotors in high-speed flight. The new model is applied to three-dimensional vortex flow and laminar dynamic stall. The applications clearly demonstrate the capability of the new model to perform on deforming and adaptive meshes. This capability is essential for rotor simulations to accomodate the blade motions and to enhance vortex resolution.
    Original languageUndefined
    Place of PublicationEnschede
    PublisherToegepaste Wiskunde
    ISBN (Print)0169-2690
    Publication statusPublished - 2005

    Publication series

    NameMemoranda
    PublisherDepartment of Applied Mathematics, University of Twente
    No.1775
    ISSN (Print)0169-2690

    Keywords

    • MSC-35L65
    • MSC-65M60
    • MSC-76M10
    • IR-65959
    • MSC-76D17
    • EWI-3595
    • METIS-226338
    • MSC-76D05

    Cite this

    van der Ven, H., Boelens, O. J., Boelens, O. J., Klaij, C. M., & van der Vegt, J. J. W. (2005). Extension of a discontinuous Galerkin finite element method to viscous rotor flow simulations. (Memoranda; No. 1775). Enschede: Toegepaste Wiskunde.