Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
245271 | Applied Energy | 2007 | 12 Pages |
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%.
Related Topics
Physical Sciences and Engineering
Energy
Energy Engineering and Power Technology
Authors
Dimitri Perrin, Niall McMahon, Martin Crane, Heather J. Ruskin, Lawrence Crane, Brian Hurley,