【摘要】 采用离散化的数值模拟方法对一幢复杂体型高层建筑及其裙房的表面风压与周围风环境进行了模拟计算,并在边界层风洞中进行了模型试验测定。数值模拟基于Reynolds时均方程,分别采用了两种湍流封闭模型:标准k?ε模型和重整化群k?ε模型。通过将两种模型的风压计算结果与风洞试验结果进行比较,获得了该类建筑物表面风压的分布特性,并对建筑周围的风环境作了分析和评价,为结构设计和建筑覆面设计提供了依据。更多还原

【Abstract】 Numerical simulation was conducted to predict the wind-induced surface pressures and wind environment around a complex-shaped high-rise building with annex.Boundary layer wind-tunnel test was also conducted to determine the wind-induced surface pressures.The numerical simulation is based on the Reynolds averaged equations and two turbulent models,the standard k ? ε model and the RNG k ? ε model(renormalization group k ? ε model).The wind-pressure distributions on different building surfaces are obtained using numerical simulation,and compared with the corresponding wind tunnel experimental results.The wind environment around the building is also estimated with the numerical method.The obtained results can be applied to the practical design of similar high-rise buildings under wind loading.更多还原