Articles | Volume 6, issue 5
Wind Energ. Sci., 6, 1089–1106, 2021
https://doi.org/10.5194/wes-6-1089-2021
Wind Energ. Sci., 6, 1089–1106, 2021
https://doi.org/10.5194/wes-6-1089-2021

Research article 03 Sep 2021

Research article | 03 Sep 2021

Recovery processes in a large offshore wind farm

Tanvi Gupta and Somnath Baidya Roy

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Cited articles

Akbar, M. and Porté-Agel, F.: The effect of free-atmosphere stratification on boundary-layer flow and power output from very large wind farms, Energies, 6, 2338–2361, https://doi.org/10.3390/en6052338, 2013. 
Akbar, M. and Porté-Agel, F.: Mean and turbulent kinetic energy budgets inside and above very large wind farm under conventionally-neutral condition, Renew. Energy, 70, 142–152, https://doi.org/10.1016/j.renene.2014.03.050, 2014. 
Akbar, M. and Porté-Agel, F.: A new wind-farm parameterization for large-scale atmospheric models, J. Renew. Sustain. Energ., 7, 013121, https://doi.org/10.1063/1.4907600, 2015. 
Allaerts, D. and Meyers, J.: Boundary-layer development and gravity waves in conventionally neutral wind farms, J. Fluid Mech., 814, 95–130, https://doi.org/10.1017/jfm.2017.11, 2017. 
Antonini, E. G. and Caldeira, K.: Atmospheric pressure gradients and Coriolis forces provide geophysical limits to power density of large wind farms, Appl. Energy, 281, 116048, https://doi.org/10.1016/j.apenergy.2020.116048, 2021. 
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Short summary
Wind turbines extract momentum from atmospheric flow and convert that to electricity. This study explores recovery processes in wind farms that replenish the momentum so that wind farms can continue to function. Experiments with a numerical model show that momentum transport by turbulent eddies from above the wind turbines is the major contributor to recovery except for strong wind conditions and low wind turbine density, where horizontal advection can also play a major role.