To investigate air flow in longitudinally ventilated traffic tunnels, a scaled model of a typical
road-traffic tunnel with an appropriate ventilation system based on axial ducted fans, is …

Successful CFD simulations of fires in large complicated structures, such as tunnels, are
largely dependent on the accuracy of the input data (initial conditions, prevailing winds …

ABSTRACT A series of CFD fire predictions of a 100 MW Memorial tunnel fire test are
performed to investigate several factors that influence the outcome of CFD fire simulations of …

This paper presents the results of a numerical investigation carried out on an alternative jet
fan, noted in literature like Banana Jet Fan, equipped with inlet/outlet silencers inclined at a …

This paper deals with the analysis of jet fan efficiency in road tunnels. Jet fans are often used
for tunnel ventilation and due to lack of space they are commonly installed close to the wall …

The study presented in this paper concerns the ventilation system inside tunnels. The
ventilation system is responsible for the removal of exhaust gases produced by vehicles and …

In longitudinal ventilation road tunnel systems the booster fans are mounted close to the
tunnel roof. Since velocities of the jet flow are high, the fiiction losses on the walls are an …

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

The efficiency of tunnel ventilation systems is commonly evaluated through numerical
modelling. In this survey, two CFD models were developed by means of Fire Dynamic …