전산 풍공학을 이용한 돔구조물의 풍압계수 산정

Recent advancement of CFD (Computational Fluid Dynamics) technique makes it possible to predict the wind flows around a building and a structure under the wind-induced conditions very close to the actual state. Therefore the practical use of CFD even for wind-resistant design becomes almost realized now. Due to the trend of applicability of CFD, the computed wind-induced pressure distribution on hemispherical domes is estimated. Pressure coefficients, referenced to freestream static pressure, were investigated for domes with height to diameter ratios of 1, 1/2, and 1/3. The results of numerical simulation were compared with tthe experimental data. Based on the results of the numerical simulation obtained in a good agreement with the experimental data. The numerical simulations are used to predict the pressure coefficients on the surfaces of the structure and to evaluate the wind environment. This paper suggests the applicability of the numerical simulation in the field of wind engineering.