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http://dx.doi.org/10.14191/Atmos.2013.23.4.513

A Wind Tunnel Study on Influences of ILS Tower on Wind Speed Measurement  

Choi, Cheol-Min (Weather Wing, Korea Air Force)
Kim, Kye-Hwan (Weather Wing, Korea Air Force)
Kim, Young-Chul (Department of Flight Operation, Hanseo University)
Kwon, Kybeom (Korea Air Force Academy)
Publication Information
Atmosphere / v.23, no.4, 2013 , pp. 513-517 More about this Journal
Abstract
In this study, it is first intended to simulate the vertical profile of atmospheric flow in a short wind tunnel. In order to accomplish it, proper devices are designed properly to reduce freestream flow momentum and it is confirmed from the measured velocity profile using hot-wire anemometer that momentum flux of the tunnel free stream can be reduced and desired atmospheric boundary can be created. Second, experiments are performed to identify influences of a surrounding structure measuring correct wind velocity by an anemometer, which are located nearby due to area limitation in actual airport and correction factors are proposed from experimental results. One of findings is that in order to limit the velocity attenuation due to a nearby structure under 10%, wind velocity measuring equipment should be installed at least 6 times of the structure height away from the structure of concern.
Keywords
Atmospheric boundary; hot-wire anemometer; velocity attenuation;
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