Wind Tunnel Rotor Measurements
bookPart
Wind tunnels have been used extensively by the wind energy community to measure 2D airfoil performance (the subject of 2d Airfoil Measurements). However, despite their size limitations, wind tunnels have also been used for 3D rotating measurements. This allows to investigate the effects of rotation without the com plicating effect of the unknown stochastic inflow. Examples are the NREL Phase VI measurements (Hand et al. 2001a) and the (New) Mexico experiment (Schepers and Snel 2007; Boorsma and Schepers 2016) but also measurements from the FFA at the CARDC (Ronsten 1994) and Mie University (Kamada and Maeda 2011) to mention only a few. In the past decade, new wind tunnels have become operational, like the Open Jet Facility at TU Delft and the large tunnel at the WindLab of the University of Oldenburg which are among others being used for rotating wind turbine measurements in a controlled environment. This chapter will explain the need for such experiments and review the focus of the experiments carried out. It will briefly describe the experimental techniques (they are described in more detail in 2d Airfoil Measurements), the main results, and the aspects which have not been covered. An outlook on open questions for further research experiments is given as well.
TNO Identifier
966768
Source title
Handbook of Wind Energy Aerodynamics
Pages
1-27
Files
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