长距离大直径公路隧道双竖井送排式通风中风机影响的数值模拟  

Numerical Simulation of Fan Influence in Long and Large Road Double-silo Tunnel Intake and Exhaust Ventilation Mode

作　　者：叶青[1] 沈国民[1] 

机构地区：[1]华中科技大学环境科学与工程学院,湖北武汉430074

出　　处：《制冷空调与电力机械》2006年第2期34-39,共6页Refrigeration Air Conditioning & Electric Power Machinery

摘　　要：应用Fluent软件对长距离、大直径、采用双竖井送排式通风的隧道进行二维数值模拟,分别对隧道入口射流主风机及两组竖井送排风机进行测试,分析了5个风机转速的变化对隧道流场的改变情况。模拟结果表明,主风机的影响最大,竖并排风机的升压性能不如送风机。Presented the 2-dimensional simulation of a double-silo tunnel intake and exhaust ventilation mode by Fluent. Tested the tunnel-entrance main fan and two groups of the silo intake and exhaust fans,and analyzed the movement of the flow field when rotate speed for five fans change respectively. The simulation resuh indicates that the effect of the main fan is most great, and the pressure promotion capability of exhaust fan in silo is not as good as intake fan.

关 键 词：隧道纵向通风 竖井 风机 FLUENT 数值模拟 

分 类 号：U453.5[建筑科学—桥梁与隧道工程]