Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/24335
Title: Numerical studies on performance evaluation of tunnel ventilation safety systems
Authors: Li, JSM
Chow, WK 
Keywords: Fire
Iterations
Smoke control
Tunnel
Ventilation
Issue Date: 2003
Publisher: Pergamon Press
Source: Tunnelling and underground space technology, 2003, v. 18, no. 5, p. 435-452 How to cite?
Journal: Tunnelling and underground space technology 
Abstract: The performance of tunnel safety systems for fire protection and ventilation provision is evaluated using Computational Fluid Dynamics (CFD). Ventilation safety systems commonly used in tunnels are reviewed first. The safety aspects related to tunnel fire and ventilation are then discussed. Air flow induced by an accidental vehicular fire in a tunnel is simulated using CFD. Based on the results, performances of different safety systems are evaluated and compared. Systems considered are longitudinal, semi-transverse, transverse, partial transverse, and combined longitudinal and semi-transverse ventilation systems. Furthermore, sensitivity analyses on the effects of the grid size, and number of iterations on the required computing time and accuracy of the results are carried out.
URI: http://hdl.handle.net/10397/24335
ISSN: 0886-7798
DOI: 10.1016/S0886-7798(03)00023-3
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