Study on Smoke Propagation in Subway Station Fire by Large Eddy Simulation

摘要：

A fire scenario occurring at Ji Shuitan Subway Station (JSTSS) is studied by the numerical method in this paper. The large eddy simulation (LES) code-Fire Dynamics Simulator (FDS) is used for the simulation. The design fire size is 5.0 MW. The dynamics of the hot smoke under different ventilation strategies including exhaust only, push-pull and push-push is predicted, and the smoke temperature, CO concentration can be predicted by the numerical method. Based on the numerical results, the effect of smoke on the passenger evacuation is discussed. The push-pull strategy is taken as the optimum scheme for smoke control under this fire scenario according to NFPA 130. Fire field modeling is found to be a practical engineering tool in fire safety design in subway fires.

关键词： smoke control ventilation subway station fire large eddy simulation

作者: LI Yanfeng PIAO Chunjun LI Junmei FAN Hongming DU Xiuli

作者单位: College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China

会议类型: 国际会议

会议名称: The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)

会议地点: 北京

会议语种:英文

页码: 690-695

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）