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《Chinese Journal of Underground Space and Engineering》 2006-03
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Tunnel Fire Numerical Simulation with the Force of Shaft's "Chimney Effect"

WANG Ze-yu,FENG Lian,ZHANG Fa-yong (College of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031 P.R.China)  
A 3D numerical simulation method is employed to simulate the fire condition in a tunnel with shaft.The pressure field in the shaft and the change of velocity field and temperature field in the tunnel caused by "chimney effect ",are analyzed in this paper.Further,it is proved that when the "chimney effect" is the main power it can effectively prevent the back-flow in addition of the ventilation velocity of 4m/s.
【CateGory Index】: U453.8
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