Aeroelastic large eddy simulations using vortex methods: unfrozen turbulent and sheared inflow

Emmanuel Simon Pierre Branlard, G. Papadakis, Mac Gaunaa, G. Winckelmans, Torben J. Larsen

    Research output: Contribution to journalConference articleResearchpeer-review

    488 Downloads (Pure)

    Abstract

    Vortex particles methods are applied to the aeroelastic simulation of a wind turbine in sheared and turbulent inflow. The possibility to perform large-eddy simulations of turbulence with the effect of the shear vorticity is demonstrated for the first time in vortex methods simulations. Most vortex methods formulation of shear, including segment formulations, assume a frozen shear. It is here shown that these formulations omit two source terms in the vorticity equation. The current paper also present unfrozen simulation of shear. The infinite support of the shear vorticity is accounted for using a novel approach relying on a Neumann to Dirichlet map. The interaction of the sheared vorticity with the wind turbine is shown to have an important impact on the wake shape. The obtained wake shape are closer to the one obtained using traditional computational fluid dynamics: Results with unfrozen shear do not have the severe upward motion of the wake observed in vortex methods simulation with frozen shear. The interaction of the shear and turbulence vorticity is shown to reduce the turbulence decay otherwise observed. The vortex code implemented is coupled to an aeroelastic code and examples of aeroelastic simulations under sheared and turbulent inflow are presented.
    Original languageEnglish
    Article number012019
    Book seriesJournal of Physics: Conference Series
    Volume625
    Number of pages13
    ISSN1742-6596
    DOIs
    Publication statusPublished - 2015
    EventWake Conference 2015 - Visby, Sweden
    Duration: 9 Jun 201511 Jun 2015

    Conference

    ConferenceWake Conference 2015
    Country/TerritorySweden
    CityVisby
    Period09/06/201511/06/2015

    Bibliographical note

    Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
    Published under licence by IOP Publishing Ltd

    Fingerprint

    Dive into the research topics of 'Aeroelastic large eddy simulations using vortex methods: unfrozen turbulent and sheared inflow'. Together they form a unique fingerprint.

    Cite this