城市地下交通隧道实体通风测试与数值仿真  

Full-scale Tests and Simulation Research on Ventilation of Urban Traffic Tunnels

作　　者：王伟[1] 华高英[1] 赵耀华[1] 李磊[2] 

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]中国建筑科学研究院建筑防火研究所,北京100013

出　　处：《北京工业大学学报》2010年第2期193-198,共6页Journal of Beijing University of Technology

基　　金：国家863高技术研究发展计划资助(2007AA11Z125);北京市教委科技计划项目资助(05004012200611);中国博士后基金资助项目(98004016200701)

摘　　要：针对北京市2条采用纵向式通风系统的地下交通隧道,采用实体测试与数值仿真相结合的方法,对隧道轴流风机与射流风机的实际通风能力及其数值模拟边界条件的设置方法等问题进行了研究.研究结果显示,在轴流风机送风口处安装导流百叶,可显著提高轴流风机的送风效果;数值模拟时,轴流风机导流百叶的功能可通过将风口处的2条竖边倾斜来实现,另外射流风机的风口建议采用压力边界条件进行设置.In view of two underground traffic tunnels with longitudinal ventilation system in Beijing, methods of combined with full-scale tests and numerical simulations are used to research the ventilation status. The ventilation ability of an axial fan and jet fans, and the settings of boundary conditions in numerical simulations are investigated. From test and simulation results, it is found that equipping diversion shutter at the air opening of axial fan can enhance its effect of air supply to tunnel downstream, and the diversion shutter can be modeled by two vertical bevel faces at the edge of the air opening. Furthermore, the jet fan is suggested to be applied with pressure boundary condition.

关 键 词：隧道工程 通风 实体试验 数值仿真 边界条件 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]