The objective of this paper is an improved understanding of the physics of the aeroelastic motion of wind turbine blades in order to improve the numerical models used for their design. Two- and three-dimensional Navier–Stokes calculations of the flow around a wind turbine airfoil using the SST and Detached Eddy Simulation (DES) turbulence models, as well as an engineering semiempirical dynamic stall model, are conducted. The computational results are compared to the experimental results that are available for both the static airfoil and the pitching airfoil. It is shown that the Navier–Stokes simulations can reproduce the main characteristic features of the flow. The DES model seems to be able to reproduce most of the details of the unsteady aerodynamics. Aerodynamic work computations indicate that a plunging motion of the airfoil can become unstable.
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e-mail: franck.bertagnolio@risoe.dk
e-mail: niels.sorerensen@risoe.dk
e-mail: flemming.rasmussen@risoe.dk
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New Insight Into the Flow Around a Wind Turbine Airfoil Section1
F. Bertagnolio,
e-mail: franck.bertagnolio@risoe.dk
F. Bertagnolio
Wind Energy Department, Risø National Laboratory, P.O. Box 49—DK-4000 Roskilde, Denmark
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N. N. Sørensen,
e-mail: niels.sorerensen@risoe.dk
N. N. Sørensen
Wind Energy Department, Risø National Laboratory, P.O. Box 49—DK-4000 Roskilde, Denmark
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F. Rasmussen
e-mail: flemming.rasmussen@risoe.dk
F. Rasmussen
Wind Energy Department, Risø National Laboratory, P.O. Box 49—DK-4000 Roskilde, Denmark
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F. Bertagnolio
Wind Energy Department, Risø National Laboratory, P.O. Box 49—DK-4000 Roskilde, Denmark
e-mail: franck.bertagnolio@risoe.dk
N. N. Sørensen
Wind Energy Department, Risø National Laboratory, P.O. Box 49—DK-4000 Roskilde, Denmark
e-mail: niels.sorerensen@risoe.dk
F. Rasmussen
Wind Energy Department, Risø National Laboratory, P.O. Box 49—DK-4000 Roskilde, Denmark
e-mail: flemming.rasmussen@risoe.dk
Contributed by the Solar Energy Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS. Manuscript received by the ASME Solar Energy Division May 24, 2004; final revision December 14, 2004. Associate Editor: D. Berg.
J. Sol. Energy Eng. May 2005, 127(2): 214-222 (9 pages)
Published Online: April 25, 2005
Article history
Received:
May 24, 2004
Revised:
December 14, 2004
Online:
April 25, 2005
Citation
Bertagnolio, F., Sørensen, N. N., and Rasmussen, F. (April 25, 2005). "New Insight Into the Flow Around a Wind Turbine Airfoil Section." ASME. J. Sol. Energy Eng. May 2005; 127(2): 214–222. https://doi.org/10.1115/1.1861927
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