热压作用下街区峡谷内通风模拟  

Numerical Simulation of Ventilation in Street Canyon by Buoyancy

作　　者：赵福云[1] 刘宝 成瑾 黄志荣 文雅冰 唐宇飞 ZHAO Fu-yun;LIU Bao;CHENG Jin;HUANG Zhi-rong;WEN Ya-bing;TANG Yu-fei(College of Civil Engineering,Hunan University of Technology)

机构地区：[1]湖南工业大学土木工程学院

出　　处：《建筑热能通风空调》2022年第5期40-44,23,共6页Building Energy & Environment

基　　金：国家自然科学基金资助项目(No.51208192);湖南省杰出青年基金资助项目(14JJ1002)。

摘　　要：利用计算流体动力学软件对三维街区峡谷内通风质量进行了模拟,分析了不同街区与不同街道纵横比H/W(建筑高度H和街区宽度W)因素对街区内温度及速度的影响,并利用空气交换率(ACH)指标对街区峡谷内通风质量进行了评价。Computational Fluid Dynamics(CFD) simulations are performed on three-dimensional street canyon with different buildings and street aspect ratio H/W(the building height H and the width of street W), fousing on the quality of ventilation. While, the distribution of temperature field and velocity field in the street canyons with different buildings and different street aspect ratios was obtained. Finally, these results of the ventilation in street canyon with air exchange rate(ACH) were evaluated.

关 键 词：CFD 三维街区 空气交换率 通风质量 

分 类 号：TU834[建筑科学—供热、供燃气、通风及空调工程]