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《Journal of Beijing University of Technology》 2010-02
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Full-scale Tests and Simulation Research on Ventilation of Urban Traffic Tunnels

WANG Wei1,HUA Gao-ying1,ZHAO Yao-hua1,LI Lei2(1.College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China;2.Institute of Building Fire Research,China Academy of Building Research,Beijing 100013,China)  
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.
【Fund】: 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)
【CateGory Index】: U453.5
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