Aero-acoustic modeling using large eddy simulation

Wen Zhong Shen, Jens Nørkær Sørensen

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    The splitting technique for aero-acoustic computations is extended to simulate three-dimensional flow and acoustic waves from airfoils. The aero-acoustic model is coupled to a sub-grid-scale turbulence model for Large-Eddy Simulations. In the first test case, the model is applied to compute laminar flow past a NACA 0015 airfoil at a Reynolds number of 800, a Mach number of 0.2 and an angle of attack of 20 degrees. The model is then applied to compute turbulent flow past a NACA 0015 airfoil at a Reynolds number of 100 000, a Mach number of 0.2 and an angle of attack of 20 degrees. The predicted noise spectrum is compared to experimental data.
    Original languageEnglish
    Book seriesJournal of Physics: Conference Series (Online)
    Volume75
    Pages (from-to)9
    ISSN1742-6596
    DOIs
    Publication statusPublished - 2007
    Event2nd International Conference on "The Science of Making Torque From Wind" - Kgs. Lyngby, Denmark
    Duration: 28 Aug 200731 Aug 2007
    Conference number: 2
    http://www.twind2007.mek.dtu.dk/

    Conference

    Conference2nd International Conference on "The Science of Making Torque From Wind"
    Number2
    Country/TerritoryDenmark
    CityKgs. Lyngby
    Period28/08/200731/08/2007
    Internet address

    Keywords

    • Wind turbine
    • CAA

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