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종횡비 변화에 따른 사각주형 구조물주위의 풍압계수 결정
서상호,이광열,유상신,노형운,Suh, S.H.,Lee, K.Y.,Yoo, S.S.,Roh, H.W. 대한설비공학회 1995 설비공학 논문집 Vol.7 No.1
The purpose of this study is to determine the wind pressure coefficients around prismatic structures with different aspect ratios. Air flows around a model of prismatic shape are investigated experimentally in the wind tunnel and simulated using finite volume method. Pressure distributions and the corresponding pressure coefficients are calculated from the experimental and numerical results. The effects of aspect ratios on the pressure coefficients are discussed extensively. The numerical results are compared with those of experiments. The simulated and experimental results for average wind pressure coefficients are considerably lower than those defined in the Korean Architectural Standard Code.
서상호,유상신,노형운,Suh, S.H.,Yoo, S.S.,Roh, H.W. 대한설비공학회 1996 설비공학 논문집 Vol.8 No.3
The objective of present study is to obtain information on the stenosis effects in the branch tubes for industrial piping system and atherogenesis processing in human arteries. Numerical solutions for flows of Newtonian and non-Newtonian fluids in the branch tubes are obtained by the finite volume method. Centerline velocity and pressure along the bifurcated tubes for water, blood and aqueous Separan AP-273 solution are computed and the numerical results of blood and the Separan solution are compared with those of water. Flow phenomena in the stenosed branch tubes are discussed extensively and predicted effectively. The effects of stenosis on the pressure loss coefficients are determined.