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http://dx.doi.org/10.9712/KASS.2014.14.2.051

Performance of Windbreak Fence for Snowfall Measurement of Regional Meteorological Office  

You, Ki-Pyo (Architectural Engineering, Chonbuk National University Long-span Steel Frame System Research Center)
Kim, Young-Moon (Architectural Engineering, Chonbuk National University)
You, Jang-Youl (KOCED Wind Tunnel Center, Chonbuk National University)
Paek, Sun-Young (Architectural Engineering, Chonbuk National University)
Publication Information
Journal of Korean Association for Spatial Structures / v.14, no.2, 2014 , pp. 51-58 More about this Journal
Abstract
Meteorological observatories use measuring boards on even ground in open areas to measure the amount of snowfall. However, it is very difficult to evaluate the accurate amount of snowfall because of the effects of the wind. Therefore, this study tried to determine the internal wind flow inside a windbreak fence to identify an area that was not affected by wind in order to measure the snowfall. We performed a computational fluid dynamics analysis, wind tunnel test of the type and height of the windbreak fence, and analyzed the wind flow inside the fence. The results showed that a double windbreak fence was better than a single windbreak fence for reducing the wind velocity. The reduction of the wind velocity was highest in the middle of a windbreak fence with a width of 4 m and a height of 60cm, where the windbreak fences were fixed to the ground.
Keywords
Meterological; Snowfall; Internal wind flow; Windbreak fence;
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