우이천 유역의 횡단 월류형 구조물 철거에 의한 수리영향 분석

Analysis of Hydraulic effect on Removing Side Overflow Type Structures in Woo Ee Stream Basin

Currently, Stream flow analysis has been accomplished by one or two dimensional equations and was applied by simple momentum equations and fixed energy conservations which contain many reach uppermost limit. In this study, FLOW-3D using CFD(Computational Fluid Dynamics) was applied to stream flow analysis which can solve three dimensional RANS(Reynolds Averaged Navier-Stokes Equation) control equation to find out physical behavior and the effect of hydraulic structures. Numerical simulation accomplished those results was compared by using turbulence models such as <TEX>$k-\varepsilon$</TEX>, RNG(Renomalized Group Theory) <TEX>$k-\varepsilon$</TEX> and LES(Large Eddy Simulation). Numerical analysis results have been illustrated by the turbulence energy effects, velocity of flow, water level pressure and eddy flows around the side overflow type structures at Jangwall bridge in urban stream.