长大公路隧道巷道式施工通风流场分布研究  

Research on the Flow Field Distribution of Long Highway Tunnel by Roadway Construction Ventilation

作　　者：彭佩 曾昌[2] 范建国[3] 

机构地区：[1]成都市建筑设计研究院,四川成都610016 [2]西南交通大学土木工程学院,四川成都6100313 [3]西南交通大学交通隧道工程教育部重点实验室,四川成都610031

出　　处：《四川建材》2015年第3期122-123,125,共3页Sichuan Building Materials

摘　　要：为研究长大公路隧道巷道式施工通风的流场分布,利用流体力学研究软件Fluent建立隧道三维模型并进行了数值仿真计算。通过分别对隧道内部、主洞与横通道连接处流场特点的研究,分析了隧道内部流场分布的特点。模拟结果表明:巷道式施工通风隧道整体流场分布复杂,存在多个涡流区;横通道与主洞气流汇合向洞口方向流动约85 m后流速稳定。To study the flow field distribution of long High-way tunnel by roadway construction ventilation, three - dimen-sional models of the tunnel is built and simulated numerically with the software Fluent based on fluid dynamics theory. By stud-ying on the flow field features of the whole tunnel and main tun-nel connecting with cross -channel, analyzing the specific fea-tures of the flow field distribution. The simulation results show that the flow field distribution inside tunnel is complex,there are some eddy zones;the gases from main tunnel and cross-channel flowing direction of the hole about 85m is close to stable.

关 键 词：公路隧道 巷道式通风 数值模拟 流场分布 

分 类 号：U453.5[建筑科学—桥梁与隧道工程]