Articles | Volume 3, issue 1
Wind Energ. Sci., 3, 329–343, 2018
Wind Energ. Sci., 3, 329–343, 2018

Research article 01 Jun 2018

Research article | 01 Jun 2018

Wind tunnel experiments on wind turbine wakes in yaw: effects of inflow turbulence and shear

Jan Bartl et al.

Related authors

Blind test comparison on the wake behind a yawed wind turbine
Franz Mühle, Jannik Schottler, Jan Bartl, Romain Futrzynski, Steve Evans, Luca Bernini, Paolo Schito, Martín Draper, Andrés Guggeri, Elektra Kleusberg, Dan S. Henningson, Michael Hölling, Joachim Peinke, Muyiwa S. Adaramola, and Lars Sætran
Wind Energ. Sci., 3, 883–903,,, 2018
Wind tunnel study on power output and yaw moments for two yaw-controlled model wind turbines
Jan Bartl, Franz Mühle, and Lars Sætran
Wind Energ. Sci., 3, 489–502,,, 2018
Short summary
Wind tunnel experiments on wind turbine wakes in yaw: redefining the wake width
Jannik Schottler, Jan Bartl, Franz Mühle, Lars Sætran, Joachim Peinke, and Michael Hölling
Wind Energ. Sci., 3, 257–273,,, 2018
Short summary
Aerodynamic Performance of the NREL S826 Airfoil in Icing Conditions
Julie Krøgenes, Lovisa Brandrud, Richard Hann, Jan Bartl, Tania Bracchi, and Lars Sætran
Wind Energ. Sci. Discuss.,,, 2017
Preprint withdrawn
Short summary
Blind test comparison of the performance and wake flow between two in-line wind turbines exposed to different turbulent inflow conditions
Jan Bartl and Lars Sætran
Wind Energ. Sci., 2, 55–76,,, 2017
Short summary

Related subject area

Aerodynamics and hydrodynamics
UNAFLOW: a holistic wind tunnel experiment about the aerodynamic response of floating wind turbines under imposed surge motion
Alessandro Fontanella, Ilmas Bayati, Robert Mikkelsen, Marco Belloli, and Alberto Zasso
Wind Energ. Sci., 6, 1169–1190,,, 2021
Short summary
Vertical-axis wind-turbine computations using a 2D hybrid wake actuator-cylinder model
Edgar Martinez-Ojeda, Francisco Javier Solorio Ordaz, and Mihir Sen
Wind Energ. Sci., 6, 1061–1077,,, 2021
Short summary
Maximal power per device area of a ducted turbine
Nojan Bagheri-Sadeghi, Brian T. Helenbrook, and Kenneth D. Visser
Wind Energ. Sci., 6, 1031–1041,,, 2021
Short summary
How realistic are the wakes of scaled wind turbine models?
Chengyu Wang, Filippo Campagnolo, Helena Canet, Daniel J. Barreiro, and Carlo L. Bottasso
Wind Energ. Sci., 6, 961–981,,, 2021
Short summary
Response of the International Energy Agency (IEA) Wind 15 MW WindCrete and Activefloat floating wind turbines to wind and second-order waves
Mohammad Youssef Mahfouz, Climent Molins, Pau Trubat, Sergio Hernández, Fernando Vigara, Antonio Pegalajar-Jurado, Henrik Bredmose, and Mohammad Salari
Wind Energ. Sci., 6, 867–883,,, 2021
Short summary

Cited articles

Annoni, J., Gebraad, P., Scholbrock, A., Fleming, P., and van Wingerden, J.-W.: Analysis of axial-induction-based wind plant control using an engineering and a high-order wind plant model, Wind Energy, 19, 113–1150,, 2016. a
Barthelmie, R. J., Pryor, S. C., Frandsen, S. T., Hansen, K. S., Schepers, J. G., Rados, K., Schlez, W., Neubert, A., Jensen, L. E., and Neckelmann, S.: Quantifying the impact of wind turbine wakes on power output at offshore wind farms, J. Atmos. Ocean. Tech., 27, 1302–1317,, 2010. a
Bartl, J. and Sætran, L.: Experimental testing of axial induction based control strategies for wake control and wind farm optimization, J. Phys. Conf. Ser., 753, 032035,, 2016. a
Bartl, J. and Sætran, L.: Blind test comparison of the performance and wake flow between two in-line wind turbines exposed to different turbulent inflow conditions, Wind Energ. Sci., 2, 55–76,, 2017. a, b, c, d
Bartl, J., Müller, A., Landolt, A., Mühle, F., Vatn, M., Oggiano, L., and Sætran, L.: Validation of the real-time-response ProCap measurement system for full wake scans behind a yawed model-scale wind turbine, DeepWind 2018 Conference, J. Phys. Conf. Ser., in review, 2018. a
Short summary
Wake steering by yawing a wind turbine offers great potential to increase the wind farm power production. A model scale experiment in a controlled wind tunnel environment has been performed to map the wake flow's complex velocity distribution for different inflow conditions. A non-uniform sheared inflow was observed to affect the wake flow only insignificantly. The level of turbulent velocity fluctuations in the inflow, however, influenced the wake's velocity distribution to a higher degree.