Articles | Volume 2, issue 2
https://doi.org/10.5194/wes-2-533-2017
https://doi.org/10.5194/wes-2-533-2017
Research article
 | 
20 Nov 2017
Research article |  | 20 Nov 2017

Impacts of the low-level jet's negative wind shear on the wind turbine

Walter Gutierrez, Arquimedes Ruiz-Columbie, Murat Tutkun, and Luciano Castillo

Cited articles

Bhaganagar, K. and Debnath, M.: Implications of Stably Stratified Atmospheric Boundary Layer Turbulence on the Near-Wake Structure of Wind Turbines, Energies, 7, 5740–5763, https://doi.org/10.3390/en7095740, 2014.
Blackadar, A. K.: Boundary layer wind maxima and their significance for the growth of nocturnal inversions, B. Am. Meteorol. Soc., 38, 283–290, 1957.
Bonner, W. D.: Climatology of the Low Level Jet, Mon. Weather Rev., 96, 833–850, 1968.
Ferreres, E., Soler, M., and Terradellas, E.: Analysis of turbulent exchange and coherent structures in the stable atmospheric boundary layer based on tower observations, Dynam. Atmos. Oceans, 64, 62–78, https://doi.org/10.1016/j.dynatmoce.2013.10.002, 2013.
Giammanco, I. M. and Peterson, R. E.: Three Representative Case Studies of the South Plains Nocturnal Low-Level Jet, 1–16, https://doi.org/10.2514/6.2006-1361, 2005.
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Short summary
Low-level jets (LLJ) are fast flows in the low atmosphere, usually seen at night, with a wind speed peak between 100–1000 m above the ground. More wind energy can be captured if an LLJ is present. The positive wind shear below the peak augments the damage to wind turbines. However, our results show that the negative shears above decrease the mechanical loading. Therefore, reaching negative shears more often reduces the LLJs' adverse impacts and makes it more feasible to harness their power.
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