Authors
Giacomo Valerio Iungo, Yu-Ting Wu, Fernando Porté-Agel
Publication date
2013/2/1
Journal
Journal of Atmospheric and Oceanic Technology
Volume
30
Issue
2
Pages
274-287
Publisher
American Meteorological Society
Description
Field measurements of the wake flow produced from a 2-MW Enercon E-70 wind turbine were performed using three scanning Doppler wind lidars. A GPS-based technique was used to determine the position of the wind turbine and the wind lidar locations, as well as the direction of the laser beams. The lidars used in this study are characterized by a high spatial resolution of 18 m, which allows the detailed characterization of the wind turbine wake. Two-dimensional measurements of wind speed were carried out by scanning a single lidar over the vertical symmetry plane of the wake. The mean axial velocity field was then retrieved by averaging 2D scans performed consecutively. To investigate wake turbulence, single lidar measurements were performed by staring the laser beam at fixed directions and using the maximum sampling frequency. From these tests, peaks in the velocity variance are detected within the …
Total citations
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Scholar articles
GV Iungo, YT Wu, F Porté-Agel - Journal of Atmospheric and Oceanic Technology, 2013