The accurate computational modelling of airflows in transport tunnels is needed for
regulations compliance, pollution and fire safety studies but remains a challenge for long …

This paper applies a novel and fast modelling approach to simulate tunnel ventilation flows
during fires. The complexity and high cost of full CFD models and the inaccuracies of …

Longitudinal ventilation is the most popular procedure for ventilating tunnels. It is relevant to
understand the interaction between ventilation velocity and tunnel fire dynamics. In this …

The capabilities of the ventilation systems in the two road tunnels at Dartford (UK) are
analysed using a multi-scale modelling approach. Both tunnels have complex semi …

This paper develops a novel modelling approach for ventilation flow in tunnels at ambient
conditions (ie cold flow). The complexity of full CFD models of flow in tunnels or the …

A new integral theory for tunnel fire under longitudinal ventilation has been presented. Its
solution on critical velocity has been compared with experimental data and the results of …

Multiscale modelling of tunnel fires that uses a coupled 3D (fire area) and 1D (the rest of the
tunnel) model is seen as the solution to the numerical problem of the large domains …

This paper presents the validation of a coupled hybrid (1D/3D-CFD) modelling methodology,
using FDS version 6.7. 5, for the first time, with full-scale fire tests. Real fire conditions of the …

In this work, a numerical 3D simulation of a longitudinal ventilation system (LVS) is
developed to analyze the fire behaviour inside a road tunnel. The numerical modelling …

Abstract Computational Fluid Dynamics (CFD) is widely used to simulate tunnels and
partially substitute on-site tests. As technology advances, new application opportunities …