Numerical Modeling of Wind Turbine Wakes

[+] Author and Article Information
Jens No̸rkær So̸rensen

Department of Mechanical Engineering, Building 403, Technical University of Denmark, DK-2800 Lyngby, Denmark

Wen Zhong Shen

Department of Mechanical Engineering, Building 403, Technical University of DenmarkAssociate Professor, Research Center for High Speed Trains, Changsha Railway University, China

J. Fluids Eng 124(2), 393-399 (May 28, 2002) (7 pages) doi:10.1115/1.1471361 History: Received November 16, 1999; Revised November 20, 2001; Online May 28, 2002
Copyright © 2002 by ASME
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Staggered grid arrangement
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Cross section of computational domain
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Cross-sectional airfoil element
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Comparison of measured and computed mechanical power production for the Nordtank 500/41 wind turbine
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Comparison of force distributions computed on the original mesh (100×50×99) and on the fine mesh (150×50×148) at Vo=10 m/s
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Computed vorticity field showing the formation of the wake structure at Vo=10 m/s
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Distribution of axial interference factor, a=1−Vz/Vo, in the rotor plane at Vo=10 m/s
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Azimuthal distribution of axial interference factor, a, at Vo=10 m/s. Solid line: Distribution along r=70%R; Dashed line: Distribution along r=80%R
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Radial distributions of averaged interference factors ā(r) and ā(r), defined in Eqs. (161718), computed at Vo=10 m/s
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Distribution of axial velocity for Vo=10 m/s. The core of the tip vortices are marked by •




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