Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
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Performance of Windbreak Fence for Snowfall Measurement of Regional Meteorological Office

기상대 적설 측정 바람막이팬스의 성능평가

  • 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)
  • Received : 2014.03.06
  • Accepted : 2014.04.14
  • Published : 2014.06.15
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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.

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References

  1. Goodison BE, Metcalf RA, Wilson RA, Jones K The Canadian automatic snow depth sensor: a performance update. Proceedings of the Fifth-sixth Annual Western Snow Conference, Atmospheric Environment Service, Canada, pp. 178-181, 1988.
  2. KMA(Korea Meteorological Administration) A Study on the Localization Strategy for Meteorological Equipments and In-Depth Research for Global Brand Development Plan: p232, 2010.
  3. Perera MDAES, Shelter behind two-dimensional solid and porous fences. Journal of Wind Engineering and Industrial Aerodynamics 8, pp.93-180, 1981. https://doi.org/10.1016/0167-6105(81)90010-6
  4. Ranga RKG, Garde RJ, Singh SK, Singth N, Experimental study on characteristics of flow past porous fences. Journal of Wind Engineering and Industrial Aerodynamics 29, pp.155-163, 1988. https://doi.org/10.1016/0167-6105(88)90154-7
  5. Lee SJ, Kim HB, Laboratory measurements of velocity and turbulence filed behind porous fences. Journal of Wind Engineering and Industrial Aerodynamics 80, pp. 311-326, 1999. https://doi.org/10.1016/S0167-6105(98)00193-7
  6. Park CW, Lee SJ.,The effects of bottom gap and non-uniform porosity in a wind fence on the surface pressure of a triangular prism located behind the fence. Journal of Wind Engineering and Industrial Aerodynamics 89, pp. 1137-1154, 2001. https://doi.org/10.1016/S0167-6105(01)00105-2
  7. Jeon JG, Kim SH, You JY, You KP, Kim YM, The Study on the decrease of pressure of low-rise building using circle porosity fence. Journal of the Korean Association for Spatial Structures. 6(1) pp.111-115, 2006
  8. scStream Version 9. 0 Cradle co., Japan.