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.
出处
《四川建材》
2015年第3期122-123,125,共3页
Sichuan Building Materials
关键词
公路隧道
巷道式通风
数值模拟
流场分布
CFD
highway tunnel
roadway construction ventilation
numerical simulation
CFD
flow field distribution
