Articles | Volume 5, issue 1
Research article
20 Jan 2020
Research article |  | 20 Jan 2020

The effect of wind direction shear on turbine performance in a wind farm in central Iowa

Miguel Sanchez Gomez and Julie K. Lundquist

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Cited articles

Antoniou, I., Pedersen, S. M., and Enevoldsen, P. B.: Wind Shear and Uncertainties in Power Curve Measurement and Wind Resources, Wind Eng., 33, 449–468,, 2009. 
Bardal, L. M., Sætran, L. R., and Wangsness, E.: Performance Test of a 3MW Wind Turbine – Effects of Shear and Turbulence, Energy Procedia, 80, 83–91,, 2015. 
Blackadar, A. K.: Boundary Layer Wind Maxima and Their Significance for the Growth of Nocturnal Inversions, B. Am. Meteorol. Soc., 38, 283–290, 1957. 
Bodini, N., Zardi, D., and Lundquist, J. K.: Three-dimensional structure of wind turbine wakes as measured by scanning lidar, Atmos. Meas. Tech., 10, 2881–2896,, 2017. 
Bodini, N., Lundquist, J. K., and Kirincich, A.: US East Coast Lidar Measurements Show Offshore Wind Turbines Will Encounter Very Low Atmospheric Turbulence, Geophys. Res. Lett., 46, 5582–5591,, 2019. 
Short summary
Wind turbine performance depends on various atmospheric conditions. We quantified the effect of the change in wind direction and speed with height (direction and speed wind shear) on turbine power at a wind farm in Iowa. Turbine performance was affected during large direction shear and small speed shear conditions and favored for the opposite scenarios. These effects make direction shear significant when analyzing the influence of different atmospheric variables on turbine operation.
Final-revised paper