Prediction of fire and smoke propagation in an underwater tunnel

Abanto, Juan; Reggio, Marcelo; Barrero, Daniel; Petro, Eddy

doi:10.1016/j.tust.2005.10.006

Cited by 19 publications

(3 citation statements)

References 7 publications

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“…According to tunnel design and construction instruction, the design traffic volume is 29866 per day, equals 1244/h. For the tunnel simulated in paper, L×N = 320×1244 = 3.98×10 5 ＜ 2×10 6 . According to the standard, the mechanized ventilation is unnecessary.…”

Section: Ventilation In Tunnelmentioning

confidence: 99%

“…At present, major methods of tunnel fire study include full-scale experiment, small-scale experiment and numerical simulation [4] . Applying physical or numerical model, domestic and international researches [5][6][7][8][9] mainly emphasize on fire development and smoke movement character in tunnel, which is based on fire source in different typical sites, but relevant research based on moving fire source is seldom carried out. Related study on this issue is made by Liangyi Wei [3] , who carried out the small-scale experiment and computer simulation [10] , but study on longitudinal temperature distribution along ceiling in real tunnel about moving fire source cannot be traced.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Simulation on Longitudinal Temperature Distribution of Tunnel Ceiling Based on Moving Fire Source

Deng

Yan

2012

AMR

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Several tunnel fires were caused by the fire source loaded in moving vehicle. The physical model was designed based on real road tunnel to simulate the distribution of longitudinal temperature. Through fire dynamic simulation software FDS, the fire processes when moving vehicle stabilized and traveled at 10m/s and 15m/s in tunnel were simulated under natural ventilation of 2.7m/s. The purpose of research includes three aspects, first, the temperature field in the early stage when moving fire travels into tunnel; second, influence of moving fire on the longitudinal temperature distribution; third, explores the change of temperature peak and its influential factors when vehicles stops and combustion stabilizes. Simulation indicates that the airflow filed movement induced by moving fire to certain degree blocks the spread of heat released in the direction opposite to fire movement and it also entrains high temperature airflow into its movement. When ventilation direction is accordant with vehicle moving direction, the stabilized value of highest temperature point of ceiling tends to be higher than that when the directions are opposite.

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Section: Ventilation In Tunnelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic Simulation on Longitudinal Temperature Distribution of Tunnel Ceiling Based on Moving Fire Source

Deng

Yan

2012

AMR

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“…This methodology solves the fundamental equations describing fluid flow: the time-dependent Navier-Stokes equations and the issues surrounding the heat transfer phenomena associated with fire. In addition, it is necessary to couple the combustion chemistry of the processes with the equations describing the transport of species [11]. In this paper, numerical simulation is carried out to analyze the smoke characteristics in tunnel fires with roof openings using the FLUENT software, a commercial CFD code [12].…”

Section: Numerical Simulation Of Tunnel Firementioning

confidence: 99%