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为研究悬挂网壳结构在台风作用下风载荷的分布特性,应用Fluent软件和计算流体力学(CFD)技术,基于SST k-ω湍流物理模型和田浦湍流强度对其在不同台风工况作用下的风荷载分布规律进行数值模拟。通过分析不同风向角、不同仰角时网壳上、下表面风压分布的规律,对比数值模拟结果与GB 50009—2012《建筑结构荷载规范》中风载体型系数,得到在台风作用时数值模拟的平均风压系数大于规范中风载体型系数值。该结果对此类大跨度空间结构抗台风设计有一定参考价值。
In order to study the wind load distribution characteristics of suspended reticulated shell under the action of typhoon, Fluent software and computational fluid dynamics (CFD) technique are used to study the effects of wind on turbulence intensity under different typhoon conditions based on SST k-ω turbulence physical model and Tura- Load distribution of the numerical simulation. By analyzing the law of the wind pressure distribution on the upper and lower surface of the shell under different angles of wind and different angles of elevation and comparing the results of numerical simulation with the model of the load of the wind load in GB 50009-2012 Building Structure Load Specification, Wind pressure coefficient is greater than the standard stroke carrier-type coefficient values. The result has certain reference value for the typhoon design of such long-span space structure.