TY - DATA T1 - Data from: Revisiting wind speed measurements using actively heated fiber optics: a wind tunnel study PY - 2020/08/21 AU - Justus Van Ramshorst AU - Miriam Coenders AU - Bart Schilperoort AU - B. J. H. (Bas) van de Wiel AU - Jonathan Izett AU - J.S. (John) Selker AU - Chad W. Higgins AU - Hubert H.G. Savenije AU - N.C. (Nick) van de Giesen UR - https://data.4tu.nl/articles/dataset/Data_from_Revisiting_wind_speed_measurements_using_actively_heated_fiber_optics_a_wind_tunnel_study/12832118/1 DO - 10.4121/12832118.v1 KW - DTS KW - AHFO KW - wind speed KW - Distributed temperature sensing (DTS) KW - Actively heated fiber-optic (AHFO) N2 -
Near-surface wind speed is typically only measured by point observations. The Actively Heated Fiber-Optic (AHFO) technique, however, has the potential to provide high-resolution distributed observations of wind speeds, allowing for better spatial characterization of fine-scale processes. Before AHFO can be widely used, its performance needs to be tested in a range of settings. In this work, experimental results on this novel observational wind-probing technique are presented. In a controlled wind-tunnel setup we assessed both the accuracy and the precision of AHFO under a range of operational conditions (wind speed, angles of attack and temperature difference). The technique allows for wind speed characterization with a spatial resolution of 0.3-m on a 1-s time scale. The flow in the wind tunnel was varied in a controlled manner, such that the mean wind, ranged between 1 and 17 ms-1. The AHFO measurements are compared to sonic anemometer measurements.
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