Numerical Simulation of Airflow Organization Process during Double Highway Tunnel Fire

Hai Yan Wang; Mei Zhen Chen; Guo Fa Liu

doi:10.4028/www.scientific.net/AMM.501-504.2370

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 501-504Numerical Simulation of Airflow Organization...

Numerical Simulation of Airflow Organization Process during Double Highway Tunnel Fire

Abstract:

Taking Majiazhai double highway tunnel as a prototype, the mathematical model of double tunnel fire is established to analyze smoke plume spread and diffusion during air flow organization process of highway tunnel fire. In the conditions of double tunnel fire jet fans closed, tunnel jet fans open, ventilators of tunnel and cross-road open simultaneously, the temperature field, pressure field and concentration field of air flow and smoke relative motion are obtained. Then it puts forward that the key technology for smoke countercurrent control in double tunnel fire is to increase the ventilation resistance in fire source upwind cross-road and reduce the air quantity flowing from tunnel jet fans into cross-road.

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Periodical:

Applied Mechanics and Materials (Volumes 501-504)

Pages:

2370-2376

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.501-504.2370

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Online since:

January 2014

Authors:

Hai Yan Wang*, Mei Zhen Chen, Guo Fa Liu

Keywords:

Air Flow Organization, Double Highway Tunnel, Fire, Numerical Simulation

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* - Corresponding Author

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