This study chronicles the development and integration of a smoke detector activation algorithm that describes the response time of a smoke detector into a Large Eddy Simulation (LES) fire model. Although the activation algorithm could be used with any CFD smoke movement model, the results here address specifically its application to the Fire Dynamics Simulator (FDS). The fire model predicts the...

To figure out the influence of smoke-proof air curtains on law tunnel fire smoke spread, this paper set a simulated scene passenger bus with source power 25 MW in Fire Dynamics Simulator (FDS), software for stimulating dynamics, to study spread tunnels. At first, analyzed distribution temperature, visibility, and CO concentration each area under conditions different jet velocities angles curtai...

A critical air velocity analysis was performed using a numerical model adapted for the eastern tunnel tube of Kastelec road in Slovenia. This allowed efficiency fans to be tested, which is required maintain appropriate traffic conditions and prescribed safety tunnel. At velocity, that is, at an lower than one, where spread smoke can still effectively controlled ensure time safe evacuation passe...

The basis of a possible fire design and verification approach to the linings RC tunnels, using performance-based approach, is presented. Starting from an extensive literature review, selection most relevant tunnel fires was analysed. study structural consequences these real may be considered as experimental data in fire, define damage levels. Back analyses were carried out main parameters contr...