Numerical study of the static and pitching RISØ-B1-18 airfoil

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    Abstract

    The objective of this report is the better understanding of the physics of the aeroelastic motion of wind turbine blades in order to improve the numerical models used for their design. In this study, the case of the RISØ-B1-18 airfoil which was equippedand measured in an open jet wind tunnel is studied. Two and three dimensional Navier-Stokes calculations using the k-w SST and Detached Eddy Simulation turbulence models are conducted. An engineering semi-empirical dynamic stall model is also used forperforming calculations. Computational results are compared to the experimental results that are available both for the static airfoil and in the case of pitching motions. It is shown that the Navier-Stokes simulations can reproduced the maincharacteristic features of the flow. The DES model seems also to be able to reproduce some details of the unsteady aerodynamics. The Navier-Stokes computations can then be used to improve the performance of the engineering model.
    Original languageEnglish
    Number of pages44
    ISBN (Print)87-550-3298-2(Internet)
    Publication statusPublished - 2004
    SeriesDenmark. Forskningscenter Risoe. Risoe-R
    Number1448(EN)
    ISSN0106-2840

    Keywords

    • Risø-R-1448
    • Risø-R-1448(EN)

    Cite this

    Bertagnolio, F. (2004). Numerical study of the static and pitching RISØ-B1-18 airfoil. Denmark. Forskningscenter Risoe. Risoe-R, No. 1448(EN)