基于CFD的沙市胜利街传统民居风环境评价与优化策略研究

CFD-based Wind Environment Evaluation and Optimization Strategies of Shengli Street in Shashi

建筑外部风环境对居民生活舒适度影响较大,除新建建筑外,大量有待保护与更新的传统民居也需要得到关注。该文通过分析沙市胜利街民居的空间形态特征,结合沙市常年风向风速数据,并通过计算流体动力学(CFD)模拟对胜利街的街巷空间进行风速和风压的模拟分析。最终通过分析胜利街建筑群的冬季和夏季风环境数据来评价胜利街建筑群外部空间的舒适度,同时为胜利街的风环境优化更新设计提供思路,以指导该地传统民居改造与更新,可供同类项目参考。

The external wind environment of a building can greatly affect the living comfort,and there is a large number of traditional residences calling for the conservation and renewal besides newly-built buildings.In this paper,the spatial morphological characteristics of the residences on Shengli Street in Shashi were analyzed and,combined with the data of the perennial wind direction and wind speed of Shashi,the wind speed and wind pressure of this street space were analyzed through computational fluid dynamics(CFD)simulation.Then,the comfort degree of the external space of the building complex on Shengli Street was evaluated based on the wind environment data in the winter and summer,with ideas provided for the optimization and renewal design of the wind environment of Shengli Street,so as to guide the renovation and renewal there.