Simulation analysis on the influence of smoke flow in special section tunnel under mechanical ventilation

2017 2nd International Seminar on Advances in Materials Science and Engineering

Li, Weicong^1 ; Wei, Gewei^1 ; Xiao, Jianqing^1 ; Zhong, Shengyuan^2 ; Liu, Wanfu^2

Administration Center of Zhuhai Link Line Project of Hong Kong-Zhuhai-Macau Bridge, Guangdong, China^1

School of Mechanical Engineering, Tianjin University of Commerce, Tianjin, China^2

关键词: Exhaust velocity;    Fire dynamics simulator;    Mechanical ventilation;    Simulation analysis;    Smoke flows;    Special sections;    Tunnel model;    Wind speed;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/231/1/012098/pdf
DOI  :  10.1088/1757-899X/231/1/012098

来源: IOP

【 摘 要 】

In this study, a special section tunnel model was established by using FDS (Fire Dynamics Simulator). In the condition of mechanical ventilation, studied the effect of the model for exhaust velocity interval and curvature, slope on the smoke flow. Finally, the longitudinal wind speed of 3m/s is determined, and the results show that the curvature and slope of the tunnel have no effect on the smoke flow.