CFD SIMULATION ON LONGITUDINAL VENTILATION OF TRAIN FIRE IN METROPOLIS RAILWAY TUNNEL

摘要：

Longitudinal ventilation has great impact on tunnel fires. In the paper, the numerical relation between length of back-layer and critical ventilation velocity was proposed by CFD numerical analysis. Critical velocities for a metropolis railway tunnel in 4.5MW, 10MW, 16MW, 20MW fire situations were obtained as 1.6426m/s, 1.9929m/s, 2.2587m/s, 2.4548m/s respectively. Based on T.Atkinsons work, the revised equation concerning heat release rate was put forward. This provides the basis for fire prevention and ventilation design in ventilated tunnel fires.

关键词： metropolis railway tunnel longitudinal ventilation train fire CFD simulation

作者: Xin Han Guan-Hai Wu Bei-Hua Cong Qing-Qing Liu Zheng Hu

作者单位: Shanghai Institute of Disaster Prevention and Relief, Tongji University, Shanghai 200092, P.R. China Shanghai Institute of Disaster Prevention and Relief, Tongji University, Shanghai 200092, P.R. China Shanghai Fire Department, Shanghai 200051, P.R. China

会议类型: 国际会议

会议名称: 2009年土木工程结构创新与可持续发展国际会议(The International Symposium on Innovation & Sustainability of Structures in Civil Engineering)

会议地点: 广州

会议语种:英文

页码: 1629-1633

在线出版日期: 2009-11-28（万方平台首次上网日期，不代表论文的发表时间）