开口空间结构表面风压分布规律研究

Wind Pressure Distribution Law for Opening Spatial Structure Surface

基于专业计算流体动力学软件平台Fluent 6.3提供的SSTk-ω湍流模型,对深圳市福田交通综合枢纽玻璃幕墙表面风压进行了不同风向下的数值模拟计算。在此基础上将数值风洞模型简化,并对比简化模型和原实体模型模拟结果。结果表明,采用简化模型同样可得到较准确的模拟结果,实际工程应用中可提高计算效率。此外,考虑建筑宽厚比、开洞率及开洞位置的影响,计算了不同影响因素下模型各表面风压系数,得出开口空间结构的表面风压分布规律,为实际工程风压分析提供参考。

Based on the Shear Stress Transport model（SSTk-ω） provided by professional computational fluid dynamics software Fluent 6.3,the surface wind pressure on the glass curtain wall of Shenzhen Futian Transport Hub is numerically simulated in different wind directions.The numerical wind tunnel model is simplified and contrasted with the original full-scale model analogue results.The results indicate that using the simplified model also may obtain accurate simulation results,and can enhance the computational efficiency in practical application.In addition,considering the influence of the building generous ratio,open-holes rate and open-holes locations,the various surfaces wind pressure coefficients are calculated and opening spatial structure superficial wind pressure distribution laws under the different affecting factor are obtained,then the reference is provide for the actual project wind pressure analysis.