EXECUTIVE SUMMARY To investigate the performance of the current emergency ventilation strategies of both the L.-H.-La Fontaine and the Ville-Marie tunnels in the event of a fire, a research project is being conducted by the Fire Risk Management Program of the Institute of Research in Construction of the National Research Council of Canada (B-4258). The research project will use Computational Fl...

A methodology for validating fire spread simulation systems using historical fire data is presented. The key features of this methodology are (a) quantitative comparison between simulator-generated fire perimeters and fire perimeters from an independently produced fire reconstruction at multiple time points during the fire, and (b) extensive sensitivity analyses on simulation variables includin...

Fire safety of each structure consists in the creation of conditions for rapid and safe people evacuation, in the limitation of spread of fire and combustion products in the structure and the surroundings of the structure, and in the creation of conditions for rapid, effective and safe response actions of rescue units. In case of fire on a passenger train standing in a tunnel, a top priority ta...

Modeling the behavior of crown fires is challenging due to the complex set of coupled processes that drive the characteristics of a spreading wildfire and the large range of spatial and temporal scales over which these processes occur. Detailed physics-based modeling approaches such as FIRETEC and the Wildland Urban Interface Fire Dynamics Simulator (WFDS) simulate fire behavior using computati...

In this study, the amount of generated pool fire, as a result of the release of chemicals in the case of an accident in tunnels, was simulated and the results were compared to the experimental data. At first, various amounts of spatial resolution (R*) were considered to compare the existing experimental data at different heights at the upstream, downstream and above the pool fire...