The effect of a meteorological tower on its top-mounted anemometer

Dimitri Perrin, Niall McMahon, Martin Crane, Heather J. Ruskin, Lawrence Crane and Brian Hurley

Applied Energy, 2007, vol. 84, issue 4, 413-424

Abstract: The wind-speed at a site can be measured by installing anemometers on top of meteorological (met) towers. In addition to other sources of error, accelerated airflow, or speed-up, around the top of met towers can cause incorrect anemometer measurements. We consider a particular example where an anemometer was located only 2 tower diameters above the met tower. Using a standard computational fluid-dynamics package, we found the maximum error for this configuration to be 2% of the wind-speed. We conclude that a top-mounted anemometer should be located at the windward side of its met tower, raised 5 diameters above the top. This will reduce speed-up error to less than 1%.

Keywords: Meteorological; tower; Flow; distortion; Anemometer; Measurement; error (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (1)

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