基于CFD模拟的兰州地区居住区室外风环境改善对策  

Strategies for Improving Outdoor Wind Environment in Residential Areas in LanzhouBased on CFD Simulation

作　　者：李田 曹鹏 LI Tian;CAO Peng(School of Architecture and Urban Planning,Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]兰州交通大学建筑与城市规划学院,兰州730070

出　　处：《科技和产业》2024年第19期264-269,共6页Science Technology and Industry

基　　金：甘肃省自然科学基金(23JRRA867)。

摘　　要：利用计算流体动力学(CFD)模拟方法,对兰州地区中海·河山郡居住区的室外风环境进行研究。通过建立数值模型,分析不同季节、不同风速条件下的风场分布和风速变化规律。结果显示,该居住区内部存在一定面积的静风区,夏季风影区和冬季风速小于1 m/s的静风区分别占比显著。针对这些问题,在建筑布局、设置开放空间和通风廊道以及建筑与主导风向的夹角等方面提出优化策略,旨在减少静风区面积,增强空气流通,提升居住环境的舒适度和质量,为兰州地区居住区的风环境改善提供科学依据,促进城市宜居化发展。Based on the use of computational fluid dynamics(CFD)simulation methods,the outdoor wind environment of the Zhonghai Heshanjun residential area in Lanzhou was investigated.By establishing a numerical model,the distribution of wind fields and the variation patterns of wind speed under different seasonal and wind speed conditions were analyzed.The results indicate that there are significant areas of low wind speed within the residential area,with substantial proportions of wind shadow zones in summer and areas with wind speeds below 1 m/s in winter.To address these issues,optimization strategies are proposed in terms of building layout,the creation of open spaces and ventilation corridors,and the angles between buildings and the prevailing wind direction.These strategies aim to reduce the areas of low wind speed,enhance air circulation,and improve the comfort and quality of the residential environment,which will provide a scientific basis for improving the wind environment of residential areas in Lanzhou,promoting the development of livable cities.

关 键 词：计算流体动力学(CFD) 室外风环境 居住区 兰州 

分 类 号：TU984[建筑科学—城市规划与设计]