大型工业建筑群室外风环境优化设计探索与实践

Exploration and Practice of Outdoor Wind Environment Optimization Design for Large-Scale Industrial Building Clusters

工业建筑在其使用过程中会产生大量的余热和有害气体,良好的通风可以带走工业建筑室内外的污染物,对改善生产环境和城市微气候具有重要的作用;在设计阶段对工业建筑群的室外风环境进行优化,可以有效改善建成后的通风效果。在分解工业建筑风环境数值模拟步骤的基础上,借助数字技术建立了常用的计算模块,实现了数值模拟中重复步骤的自动运行,引入舒适风速区比率、静风比率等评价因子,构建了快速、准确、便于方案比选的数值模拟方法。最后以包装材料工厂为例,在设计阶段通过数值模拟对工厂室外的风环境进行分析,并针对精整车间各分区之间的距离进行了优化,在建成后对室外风环境进行了测试,室外风速基本满足工厂室外通风的要求。

Industrial buildings often generate a lot of waste heat and noxious gases in the operation process.Good ventilation can dissipate the outdoor pollutants in the industrial building clusters and thereby improve the working environment and adjust local micro-climate.Optimizing the outdoor wind environment for industrial building clusters at the design phrase can effectively improve the ventilation effect of the built environment.This research broke down the simulation procedure for wind environment in industrial building clusters,and used digital technology to build up simulation modules.The new simulation method would automatically run the repeated steps in the numerical modeling.It also established a numerical simulation method that could efficiently compare different design options using evaluation factors such as comfortable wind zone ratio,calm wind zone ratio and so on.Based on the case study of a packaging materials plant,the outdoor wind environment of the factory was analyzed by numerical simulation in the design stage,and the distance between each partition of the finishing workshop was optimized.It was found that,based on the on-site measurement,the wind speed in the industrial building clusters would meet the requirements for outdoor wind environment.