한국환경복원기술학회지 (Journal of the Korean Society of Environmental Restoration Technology)
- 제12권3호
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- Pages.98-105
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- 2009
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- 1229-3032(pISSN)
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- 2733-5011(eISSN)
해안림에 의한 풍속저감 효과의 수치적 모의
Numerical Simulation of the Wind Speed Reduction by Coastal Forest Belts
- Im, Sangjun (Dept. of Forest Sciences, Seoul National University) ;
- Lee, Sang Ho (Dept. of Forest Sciences, Seoul National University) ;
- Kim, Dongyeob (Dept. of Forest Sciences, Seoul National University) ;
- Hong, Youngjoo (Dept. of Forest Sciences, Seoul National University)
- 투고 : 2009.04.24
- 심사 : 2009.06.16
- 발행 : 2009.06.30
초록
The objective of this study is to develop numerical simulation model for analysing the wind speed reduction effect by coastal forest belts. The horizontally homogeneous turbulent flow equations, which are derived from the Reynolds-averaged Navier-Stokes method, both above the tree canopy and within the canopy were first formulated, and a first-order closure scheme with the capability of accounting the bulk momentum transport term within the canopy was employed. The averaged equations were solved numerically by finite difference method, FTCS (forward time centered space) scheme. The proposed model was also used to numerically investigate the effects of structural characteristic of forest belt on the wind speed. The effects of maximum leaf area density were evaluated, with the leaf area density of