DNS of Actuator Disk Arrays in Ekman Boundary Layers: Preliminary Results

  • R. Johnstone
  • P. R. Spalart
  • G. N. Coleman
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 141)


The power output of large wind farms is limited by the downward flux of kinetic energy through the atmospheric boundary layer, as ultimately all available power at turbine altitude is exhausted. This becomes relevant when the power extracted per unit area is sufficiently large, and the atmospheric boundary layer is significantly affected by the wind farm. Such coupling is therefore relevant to the design of farms, in terms of the spacing between turbines (typically roughly 5 diameters) and their resistance level (as compared with the Betz setting).


Large Eddy Simulation Atmospheric Boundary Layer Wind Farm Ekman Layer Actuator Disk 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.University of SouthamptonSouthamptonUK
  2. 2.Boeing Commercial AirplanesSeattleUSA

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