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독립된 원뿔형 산지의 기류 특성

Characteristics of Flow over Isolated Corn-type Hills

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초록

Complex terrain like hill, mountain, and escarpment etc. makes complex air flow. This topographic condition will affect not only speed but also turbulence of wind over the complex terrain. In this paper, turbulence intensities are considered to investigate characteristics of wind over cone-type hills. There are five simple hill models with different slope () for wind tunnel test. It was observed through wind tunnel tests that turbulence intensities of down-slope wind at the end of the 3-Dimensional hills remarkably increased, but ones of windward slope wind at the front side of the hills slightly increased. Also, turbulence intensities proportionally increased with slope of the cone-type hills.

Abstract

Complex terrain like hill, mountain, and escarpment etc. makes complex air flow. This topographic condition will affect not only speed but also turbulence of wind over the complex terrain. In this paper, turbulence intensities are considered to investigate characteristics of wind over cone-type hills. There are five simple hill models with different slope () for wind tunnel test. It was observed through wind tunnel tests that turbulence intensities of down-slope wind at the end of the 3-Dimensional hills remarkably increased, but ones of windward slope wind at the front side of the hills slightly increased. Also, turbulence intensities proportionally increased with slope of the cone-type hills.

참고문헌 (15)

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  3. Ishihara, T., "A wind tunnel study of turbulent flow over a three-dimensional steep hill", Journal of Wind Engineering, 83, pp.95~107 (1999)
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  7. Mason, P.J., "Flow over an isolated hill of moderate slope", Flow over an isolated hill of moderate slope” Quart. J. the Royal Meteorological Society, 105(144), pp.383~395 (1979)
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  11. Yan, M., "Turbulent characteristics of flow field over a three-dimensional steep hill", J. of Wind Engineering JAWE, 73, pp.3~14 (1997)
  12. 조강표, "3차원 산악지형의 풍속할증영향에 관한 연구", 한국풍공학회지, 10(2), pp.241~251 (2006), 한국풍공학회
  13. 조강표, "3차원 산악지형의 풍속할증계수에 대한 재고찰", 대한건축학회 논문집(구조계), 23(1), pp.63~70 (2007), 대한건축학회
  14. 조강표, "독립된 3차원 산악지형의 풍속할증에 대한 풍동실험 및 고찰", 대한건축학회 논문집(구조계), 24(1), pp.3~10 (2008), 대한건축학회
  15. 대한건축학회, "건설교통부고시 건축구조설계기준" (2005)

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