Articles | Volume 17, issue 5
Review article
08 Mar 2024
Review article |  | 08 Mar 2024

Modelling of cup anemometry and dynamic overspeeding in average wind speed measurements

Troels Friis Pedersen and Jan-Åke Dahlberg

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Cited articles

Albers, A.: Open field cup anemometry, DEWI Magazin Nr. 19, 53–58, 2001. 
Albers, A., Klug, H., and Westermann, D.: Cup anemometry in Wind Engineering, Struggle for improvement, DEWI Magazin Nr. 18, 17–28, 2001. 
ASTM: Standard test method for determining the performance of a cup anemometer or propeller anemometer, ASTM International, West Conshohocken, PA,, 2017. 
Barton, S.: Evaluation of distance constants for various cup anemometers and measurement of the vertical sensitivity of a 'Vector' type A100 cup anemometer, Report No 421/88, National Engineering Laboratory, evaluation-of-distance-constaints-for-various-cup-anemometers-and (last access: 8 February 2024), 1989. 
BIPM, IEC, IFCC, ILAC, ISO, IUPAC, IUPAP, and OIML. Evaluation of measurement data | Guide to the expression of uncertainty in measurement, Joint Committee for Guides in Metrology, JCGM 100:2008, (last access: 8 February 2024), 2008. 
Short summary
Accuracy is important in wind speed measurements with cup anemometers. Dynamic overspeeding is historically considered an inherent and significant error, supported by a two-cup drag model. But lower (and even zero) overspeeding might be present for low-to-medium turbulence intensities for conical cups with short arms. A parabolic torque model reveals various dynamic overspeeding characteristics of cup anemometers, but modelling of actual cup anemometers is best made with tabulated data.