In this paper, piston wind effect on smoke diffusion characteristic in subway tunnel is studied by using three-dimensional transient computational fluid dynamics (CFD) method. In the first simulation case, fire disaster is simulated with homogeneous resting initial field condition. In the second simulation case, the train’s decelerating process till stopping in the tunnel is simulated for getting three-dimensional tunnel air velocity field distribution. Then the final heterogeneous air velocity field when the train stops in the tunnel is taken as initial field condition and the same fire scenario as the first case is simulated again. The data obtained under both initial conditions are compared by detecting people evacuation safety and the influence of initial air velocity field is analyzed. The results show that the inertial air velocity field caused by train’s movement has significant influence on smoke diffusion at the first few minutes of fire disaster, which is the key time for people’s evacuation. The adopted method in this paper and the simulation result could be used in establishing more effective subway fire evacuation plan.
Skip Nav Destination
ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences
July 19–23, 2009
San Francisco, California, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4358-1
PROCEEDINGS PAPER
Effect of Initial Velocity Field on Smoke Diffusion Characteristic in Subway Tunnel
Hui Yang,
Hui Yang
Beijing University of Civil Engineering and Architecture, Beijing, China
Search for other works by this author on:
Li Jia,
Li Jia
Beijing Jiaotong University, Beijing, China
Search for other works by this author on:
Lixin Yang
Lixin Yang
Beijing Jiaotong University, Beijing, China
Search for other works by this author on:
Hui Yang
Beijing University of Civil Engineering and Architecture, Beijing, China
Li Jia
Beijing Jiaotong University, Beijing, China
Lixin Yang
Beijing Jiaotong University, Beijing, China
Paper No:
HT2009-88439, pp. 145-150; 6 pages
Published Online:
March 12, 2010
Citation
Yang, H, Jia, L, & Yang, L. "Effect of Initial Velocity Field on Smoke Diffusion Characteristic in Subway Tunnel." Proceedings of the ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences. Volume 3: Combustion, Fire and Reacting Flow; Heat Transfer in Multiphase Systems; Heat Transfer in Transport Phenomena in Manufacturing and Materials Processing; Heat and Mass Transfer in Biotechnology; Low Temperature Heat Transfer; Environmental Heat Transfer; Heat Transfer Education; Visualization of Heat Transfer. San Francisco, California, USA. July 19–23, 2009. pp. 145-150. ASME. https://doi.org/10.1115/HT2009-88439
Download citation file:
10
Views
Related Proceedings Papers
Related Articles
Numerical Simulation of the Evacuation Process and Smoke Propagation Due to a Fire in a Road Tunnel With Transverse Ventilation System
J. Thermal Sci. Eng. Appl (June,2021)
On the Use of Solid Curtains Near Smoke Extraction Vents to Control Smoke Spread Resulting From Fire in Road Tunnels
J. Thermal Sci. Eng. Appl (June,2021)
Basic Theory of Rapid-Transit Tunnel Ventilation
J. Eng. Ind (February,1966)
Related Chapters
The Smoke Movement Prediction and Ventilation Optimization for Fire in Long Tunnel
International Conference on Optimization Design (ICOD 2010)
Analysis of the Affect of Heat Pipe Line Engineering Construction on the Settlement and Deformation Tunnels of Beijing Subway Line 10
Geological Engineering: Proceedings of the 1 st International Conference (ICGE 2007)
Stochastic Prediction for Frost Heave Effect of a Subway Tunnel
Geological Engineering: Proceedings of the 1 st International Conference (ICGE 2007)