Computational study of effects of jet fans on the ventilation of a highway curved tunnel

F Wang, M Wang, S He, J Zhang, Y Deng - Tunnelling and underground …, 2010 - Elsevier
A computational study was carried out to investigate the aerodynamic behavior of jet fans in
a curved road tunnel and its effects on the tunnel ventilation system. It has been found that …

Numerical study of effects of deflected angles of jet fans on the normal ventilation in a curved tunnel

F Wang, M Wang, Q Wang - Tunnelling and Underground Space …, 2012 - Elsevier
A computational study was carried out to investigate the effects of deflected angles of jet
fans, equipped with silencers, on the tunnel ventilation system. An optimal deflected angle …

A numerical investigation into the performance of two types of jet fans in ventilation of an urban tunnel under traffic jam condition

E Eftekharian, A Dastan, O Abouali… - … and Underground Space …, 2014 - Elsevier
Recent increase in construction of road tunnels in cities, has increased the need for effective
ventilation for removing toxic gases emitted by vehicles from the tunnels especially during …

Influence of winding wall on the entrainment characteristics of air jet in curved road tunnels

Y Li, T Chen, Z Xu, J Kong, M Wang, C Fan - Tunnelling and Underground …, 2019 - Elsevier
The interchange structure in tunnel complexes has the characteristics of small radius and
multi-ramp compared with the general tunnel, and the design of the ventilation system needs …

Numerical study of the optimization of the pitch angle of an alternative jet fan in a longitudinal tunnel ventilation system

V Betta, F Cascetta, M Musto, G Rotondo - Tunnelling and underground …, 2009 - Elsevier
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 …

Experimental and numerical study on the flow field of longitudinally ventilated tunnels with water spray system

T Deng, S Norris, RN Sharma - Tunnelling and Underground Space …, 2022 - Elsevier
Experiments and numerical simulations have been conducted to study the effect of water
sprays on the airflow in longitudinally ventilated tunnels. A physical model tunnel containing …

Air flow behavior and gas dispersion in the recirculation ventilation system of a twin-tunnel construction

Y Fang, J Fan, B Kenneally, M Mooney - Tunnelling and underground …, 2016 - Elsevier
Forced ventilation and recirculation systems are usually used in the construction of long twin
tunnels as they offer large amounts of fresh air economically. However, because of the …

Novel correlation to evaluate the pressure losses for different traffic jam conditions in road tunnel

F Cascetta, M Musto, G Rotondo… - … and Underground Space …, 2019 - Elsevier
The main aim of the present work is to provide a novel correlation between different traffic
jam conditions (Filling Traffic Tunnel) in road tunnel and pressure losses, in order to …

Numerical comparison of performance between traditional and alternative jet fans in tiled tunnel in emergency ventilation

M Musto, G Rotondo - Tunnelling and Underground Space Technology, 2014 - Elsevier
In this paper a computational study was carried out to evaluate the performance of
longitudinal ventilation system equipped with an alternative jet fan with respect to traditional …

Computational study of effects of traffic force on the ventilation in highway curved tunnels

F Wang, M Wang, S He, Y Deng - Tunnelling and underground space …, 2011 - Elsevier
A computational study using dynamic mesh method was carried out to investigate the effects
of traffic force caused by a moving vehicle on ventilation in a straight road tunnel and several …