摘要
采用Realizable k-ε湍流模型对某方形截面双塔楼超高层建筑平均风荷载进行了CFD数值模拟,并对其干扰效应进行了分析。首先,通过将CAARC高层建筑标准模型数值模拟结果与文献结果的对比,验证了本文数值模拟方法及参数的有效性。然后,进行了单体和双塔楼超高层建筑定常绕流数值模拟计算,分析了不同风向角情况下结构表面平均风压和基底气动力的特点,研究了两塔楼间的干扰效应,还通过流场显示对其柳理进行了分析。
Mean wind loads and interference effect on two square sections super high-rise buildings were numerically investigated, by adopting realizable k-ε turbulence model. Numerical method and parameters in the present study were firstly verified by comparing the simulated results of CAARC tall building model with corresponding wind tunnel experiment data. Mean flow field around an isolated building and two square sections super tall buildings were simulated subsequently. Characteristics of mean wind pressure and base aerodynamic forces were analyzed in different wind angle interference effect on the two square section super tall buildings was investigated. Flow field around The the two buildings was analyzed to study the mechanism of the interference effect.
出处
《建筑技术》
北大核心
2015年第5期467-470,共4页
Architecture Technology
关键词
CFD数值模拟
超高层建筑
平均风荷载
干扰效应
CFD numerical simulation
high-rise buildings
mean wind loads
interference effects
