Articles | Volume 1, issue 2
Wind Energ. Sci., 1, 89–100, 2016
Wind Energ. Sci., 1, 89–100, 2016

Research article 12 Jul 2016

Research article | 12 Jul 2016

Detailed analysis of the blade root flow of a horizontal axis wind turbine

Iván Herráez et al.

Related authors

Remote surface damage detection on rotor blades of operating wind turbines by means of infrared thermography
Dominik Traphan, Iván Herráez, Peter Meinlschmidt, Friedrich Schlüter, Joachim Peinke, and Gerd Gülker
Wind Energ. Sci., 3, 639–650,,, 2018
Short summary
Extraction of the wake induction and angle of attack on rotating wind turbine blades from PIV and CFD results
Iván Herráez, Elia Daniele, and J. Gerard Schepers
Wind Energ. Sci., 3, 1–9,,, 2018
Short summary

Related subject area

Aerodynamics and hydrodynamics
Wind tunnel testing of a swept tip shape and comparison with multi-fidelity aerodynamic simulations
Thanasis Barlas, Georg Raimund Pirrung, Néstor Ramos-García, Sergio González Horcas, Robert Flemming Mikkelsen, Anders Smærup Olsen, and Mac Gaunaa
Wind Energ. Sci., 6, 1311–1324,,, 2021
Short summary
Ducted wind turbines in yawed flow: a numerical study
Vinit Dighe, Dhruv Suri, Francesco Avallone, and Gerard van Bussel
Wind Energ. Sci., 6, 1263–1275,,, 2021
Short summary
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

Cited articles

Akay, B., Micallef, D., Ferreira, C. J., and van Bussel, G.: Effects of geometry and tip speed ratio on the HAWT blade's root flow, in: The Science of Making Torque from Wind 2012, Oldenburg, Germany, J. Phys. Conf. Ser., 555, 012002,, 2012.
Akay, B., Ragni, D., Simão Ferreira, C., and van Bussel, G.: Experimental investigation of the root flow in a horizontal axis wind turbine, Wind Energy, 17, 1093–1109,, 2014.
Bak, C., Johansen, J., and Andersen, P.: Three-dimensional corrections of airfoil characteristics based on pressure distributions, in: European Wind Energy Conference Scientific Proceedings, 27 February–2 March 2006, Athens, Greece, 2006.
Bechmann, A., Sørensen, N. N., and Zahle, F.: CFD simulations of the MEXICO rotor, Wind Energy, 14, 677–689,, 2011.
Breton, S.-P., Coton, F. N., and Moe, G.: A study on rotational effects and different stall delay models using a prescribed wake vortex scheme and NREL phase VI experiment data, Wind Energy, 11, 459–482,, 2008.
Short summary
The flow in the blade root region of horizontal axis wind turbines is highly three-dimensional. Furthermore, it is influenced by the presence of strong trailing vortices. In this work we study the complex root flow by means of experiments and numerical simulations. The simulations are shown to be reliable at predicting the main flow features of the rotor blades. Additionally, new insight into the physical mechanisms governing the blade root aerodynamics is given.