基于通风效果优化的半开敞地下中庭垂直绿化设计策略  

Vertical Greening Design Strategy for Semi-Open Underground Atrium Based on Ventilation Effect Optimization

作　　者：郭范敏 杨青娟[1] 张鑫 Guo Fanmin;Yang Qingjuan;Zhang Xin(School of Architecture,Southwest Jiaotong University,Chengdu 610000,Sichuan,China)

机构地区：[1]西南交通大学建筑学院,四川成都610000

出　　处：《绿色科技》2025年第5期32-38,共7页Journal of Green Science and Technology

基　　金：教育部社科基金项目(编号:21YJAZH100);中铁第一勘察设计院开放研究课题[编号:2021KY36ZD(TOD)-01]。

摘　　要：随着城市化进程加快,地下空间的自然通风优化愈发重要。聚焦于地下半开敞中庭的独特环境特征,探讨基于热压通风原理的垂直绿化对通风优化的影响机理和设计策略。通过FLUENT模拟以活墙为典型代表的垂直绿化在半开敞地下中庭空间的应用,关注植物遮阴和蒸腾等降温作用如何促进空气流动,辨析与通风相关的三类设计变量(距离地面高度、墙面覆盖率、倾斜角度)和热压通风优化机理之间的关系,分析对半开敞地下中庭空间气流模式和温度分布的影响,研究重点关注中庭开口的垂直投影区域,并提出具体的设计建议。结果表明:合理控制活墙的相关设计变量可有效减少热量积聚,形成明显的局部温差,增加气压差从而增加风速改善空气流通。本研究在垂直绿化方面丰富了地下中庭热压通风效果优化的相关研究,为地下中庭空间的舒适度提升和空气质量改善提供了理论支持和实践指导。With the acceleration of urbanization,the optimization of natural ventilation in underground space has become increasingly important.This study focuses on the unique environmental characteristics of underground semi-open courtyards,exploring the impact mechanism and design strategies of vertical greening based on the principle of thermal pressure ventilation on ventilation optimization.By simulating the application of vertical greening represented by living walls in semi-open underground atrium spaces using FLUENT,this study focuses on how the cooling effect of plant shading and transpiration can promote air flow,and analyzes the relationship between three types of design variables related to ventilation(height above ground,wall coverage,and tilt angle)and the optimization mechanism of thermal compression ventilation.The study analyzes the impact of airflow patterns and temperature distribution in semi-open underground atrium spaces,with a focus on the vertical projection area of the atrium opening,and proposes specific design recommendations.The results show that reasonable control of design variables related to living walls can effectively reduce heat accumulation,form significant local temperature differences,increase air pressure differences,and improve air circulation by increasing wind speed.This study enriches the relevant research on optimizing the thermal ventilation effect of underground atrium in vertical greening,providing theoretical support and practical guidance for improving the comfort and air quality of underground atrium space.

关 键 词：自然通风 地下中庭空间 FLUENT模拟 活墙 垂直绿化 

分 类 号：TU921[建筑科学—建筑设计及理论]