Articles | Volume 8, issue 1
https://doi.org/10.5194/wes-8-125-2023
https://doi.org/10.5194/wes-8-125-2023
Research article
 | 
24 Jan 2023
Research article |  | 24 Jan 2023

Turbulence structures and entrainment length scales in large offshore wind farms

Abdul Haseeb Syed, Jakob Mann, Andreas Platis, and Jens Bange

Related authors

Simulating low-frequency wind fluctuations
Abdul Haseeb Syed and Jakob Mann
Wind Energ. Sci., 9, 1381–1391, https://doi.org/10.5194/wes-9-1381-2024,https://doi.org/10.5194/wes-9-1381-2024, 2024
Short summary

Related subject area

Thematic area: Wind and the atmosphere | Topic: Wind and turbulence
An analytical formulation for turbulence kinetic energy added by wind turbines based on large-eddy simulation
Ali Khanjari, Asim Feroz, and Cristina L. Archer
Wind Energ. Sci., 10, 887–905, https://doi.org/10.5194/wes-10-887-2025,https://doi.org/10.5194/wes-10-887-2025, 2025
Short summary
Tall wind profile validation of ERA5, NORA3, and NEWA datasets using lidar observations
Etienne Cheynet, Jan Markus Diezel, Hilde Haakenstad, Øyvind Breivik, Alfredo Peña, and Joachim Reuder
Wind Energ. Sci., 10, 733–754, https://doi.org/10.5194/wes-10-733-2025,https://doi.org/10.5194/wes-10-733-2025, 2025
Short summary
Flow acceleration statistics: a new paradigm for wind-driven loads, towards probabilistic turbine design
Mark Kelly
Wind Energ. Sci., 10, 535–558, https://doi.org/10.5194/wes-10-535-2025,https://doi.org/10.5194/wes-10-535-2025, 2025
Short summary
Observations of wind farm wake recovery at an operating wind farm
Raghavendra Krishnamurthy, Rob K. Newsom, Colleen M. Kaul, Stefano Letizia, Mikhail Pekour, Nicholas Hamilton, Duli Chand, Donna Flynn, Nicola Bodini, and Patrick Moriarty
Wind Energ. Sci., 10, 361–380, https://doi.org/10.5194/wes-10-361-2025,https://doi.org/10.5194/wes-10-361-2025, 2025
Short summary
Periods of constant wind speed: how long do they last in the turbulent atmospheric boundary layer?
Daniela Moreno, Jan Friedrich, Matthias Wächter, Jörg Schwarte, and Joachim Peinke
Wind Energ. Sci., 10, 347–360, https://doi.org/10.5194/wes-10-347-2025,https://doi.org/10.5194/wes-10-347-2025, 2025
Short summary

Cited articles

Abkar, 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. a, b
Andersen, S. J., Sørensen, J. N., and Mikkelsen, R. F.: Turbulence and entrainment length scales in large wind farms, Philos. T. Roy. Soc. A, 375, 20160107, https://doi.org/10.1098/rsta.2016.0107, 2017. a
Bange, J., Esposito, M., Lenschow, D. H., Brown, P. R. A., Dreiling, V., Giez, A., Mahrt, L., Malinowski, S. P., Rodi, A. R., Shaw, R. A., Siebert, H., Smit, H., and Zöger, M.: Measurement of Aircraft State and Thermodynamic and Dynamic Variables, in: chap. 2, John Wiley & Sons, Ltd, 7–75, https://doi.org/10.1002/9783527653218.ch2, 2013. a
Bärfuss, K., Hankers, R., Bitter, M., Feuerle, T., Schulz, H., Rausch, T., Platis, A., Bange, J., and Lampert, A.: In-situ airborne measurements of atmospheric and sea surface parameters related to offshore wind parks in the German Bight, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.902845, 2019. a, b
Cañadillas, B., Foreman, R., Barth, V., Siedersleben, S., Lampert, A., Platis, A., Djath, B., Schulz-Stellenfleth, J., Bange, J., Emeis, S., and Neumann, T.: Offshore wind farm wake recovery: Airborne measurements and its representation in engineering models, Wind Energy, 23, 1249–1265, https://doi.org/10.1002/we.2484, 2020. a
Download
Short summary
Wind turbines extract energy from the incoming wind flow, which needs to be recovered. In very large offshore wind farms, the energy is recovered mostly from above the wind farm in a process called entrainment. In this study, we analyzed the effect of atmospheric stability on the entrainment process in large offshore wind farms using measurements recorded by a research aircraft. This is the first time that in situ measurements are used to study the energy recovery process above wind farms.
Share
Altmetrics
Final-revised paper
Preprint