Articles | Volume 3, issue 2
Wind Energ. Sci., 3, 681–691, 2018
https://doi.org/10.5194/wes-3-681-2018

Special issue: Flow in complex terrain: the Perdigão campaigns (WES/ACP/AMT...

Wind Energ. Sci., 3, 681–691, 2018
https://doi.org/10.5194/wes-3-681-2018

Research article 10 Oct 2018

Research article | 10 Oct 2018

Does the wind turbine wake follow the topography? A multi-lidar study in complex terrain

Robert Menke et al.

Data sets

Perdigão-2015: multi-lidar flow mapping over the complex terrain site including the wind turbine inflow and wake measurements N. Vasiljevic, N. Angleou, R. Menke, G. Lea, J. Mann, M. Courtney, J. L. Palma, and J. C. Matos https://doi.org/10.11583/DTU.7098536

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Short summary
This study investigates the behaviour of wind turbine wakes in complex terrain. Using six scanning lidars, we measured the wake of a single turbine at the Perdigão site in Portugal in 2015. Our findings show that wake propagation is highly dependent on the atmospheric stability, which is mostly ignored in flow simulation used for wind farm layout design. The wake is lifted up during unstable atmospheric conditions and follows the terrain downwards during stable conditions.