An Attempt to Characterize the Structure of Wake Turbulence Using a Combined Experimental and Numerical Approach

  • Gunner C. Larsen
  • K. S. Hansen
  • Niels Troldborg
  • Jakob Mann
  • Karen Enevoldsen
  • Ferhat Bingöl
Part of the Springer Proceedings in Physics book series (SPPHY, volume 141)

Abstract

This paper describes a combined numerical and experimental effort to characterize the structure of wake turbulence. The numerical approach is based on detailed LES. The experimental approach is based on an innovative analysis applied on full-scale wake recordings obtained using a newly developed 2D lidar technology. Consistency between the numerical and experimental approaches in terms of wake turbulence characteristics is observed. Compared to conventional atmospheric boundary layer (ABL) turbulence, the wake turbulence is inhomogeneous with reduced length scales, increased intensity, and increased coherence decay.

Keywords

Wind Turbine Large Eddy Simulation Turbulence Intensity Atmospheric Boundary Layer Integral Length Scale 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    Bingöl, F., Mann, J., Larsen, G.C.: Lidar measurements of wake dynamics part I: One dimensional scanning. Wind Energy 13(1), 51–61 (2010)CrossRefGoogle Scholar
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    Larsen, G.C., Madsen, H.A., Thomsen, K., Larsen, T.J.: Wake meandering: A pragmatic approach. Wind Energy 11(4), 377–395 (2008)CrossRefGoogle Scholar
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    Larsen, G.C., Madsen Aagaard, H., Larsen, T.J., Troldborg, N.: Wake modeling and simulation. Technical report, Forskningscenter Risø, Roskilde (2008)Google Scholar
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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Gunner C. Larsen
    • 1
  • K. S. Hansen
    • 2
  • Niels Troldborg
    • 1
  • Jakob Mann
    • 1
  • Karen Enevoldsen
    • 1
  • Ferhat Bingöl
    • 1
  1. 1.National Laboratory for Sustainable EnergyRisø DTURoskildeDenmark
  2. 2.Department of Mechanical EngineeringDTULyngbyDenmark

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