Articles | Volume 2, issue 1
Wind Energ. Sci., 2, 55–76, 2017
https://doi.org/10.5194/wes-2-55-2017
Wind Energ. Sci., 2, 55–76, 2017
https://doi.org/10.5194/wes-2-55-2017

Research article 09 Feb 2017

Research article | 09 Feb 2017

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

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Cited articles

Adaramola, M. S. and Krogstad, P. Å.: Experimental investigation of wake effects on wind turbine performance, Renew. Energ., 36, 2078–2086, https://doi.org/10.1016/j.renene.2011.01.024, 2011.
Ainslie, J. F.: Calculating the flowfield in the wake of wind turbines, J. Wind Eng. Ind. Aerod., 27, 213–224, https://doi.org/10.1016/0167-6105(88)90037-2, 1988.
Aksnes, N. Y.: Performance Characteristics of the NREL S826 Airfoil – An assessment of Re-independency and effect of inflow turbulence, Master's thesis NTNU, 2015.
Barthelmie, R. J., Hansen, K., Frandsen, S. T., Rathmann, O., Schepers, J. G., Schlez, W., Phillips, J., Rados, K., Zervos, A., Politis, E. S., and Chaviaropoulos, P. K.: Modelling and measuring flow and wind turbine wakes in large wind farms offshore, Wind Energy, 12, 431–444, https://doi.org/10.1002/we.348, 2009.
Bartl, J. and Sætran, L.: Experimental testing of axial induction based control strategies for wake control and wind farm optimization, J. Phys. Conf. Ser. B, Wind, wakes, turbulence and wind farms, 753, 032035, https://doi.org/10.1088/1742-6596/753/3/032035, 2016.
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Short summary
As wind turbines extract energy from the wind, a wind field of reduced wind speed and increased turbulence is left behind for the downstream turbines. For the exact calculation of the annual energy production and lifetime of wind turbines, it is therefore of great importance to be able to accurately calculate this turbulent wake flow for different wind conditions. This paper compares different computational modeling approaches with flow measurements on model turbines in a wind tunnel.