某双塔楼超高层建筑平均风荷载及干扰效应数值模拟研究  

NUMERICAL SIMULATION OF MEAN WIND LOADS AND INTERFERENCE EFFECT ON SQUARE-SECTION SUPER HIGH-RISE BUILDINGS

作　　者：周鲁敏[1] 

机构地区：[1]同济大学建筑设计研究院(集团)有限公司,上海200092

出　　处：《建筑技术》2015年第5期467-470,共4页Architecture Technology

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.

关 键 词：CFD数值模拟 超高层建筑 平均风荷载 干扰效应 

分 类 号：TU711[建筑科学—建筑技术科学]