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CONV-09. Proceedings of International Symposium on Convective Heat and Mass Transfer in Sustainable Energy
April 26 - May 1, 2009, Hammamet, Tunisia

DOI: 10.1615/ICHMT.2009.CONV


ISBN Print: 978-1-56700-261-4

ISSN Online: 2642-3499

ISSN Flash Drive: 2642-3502

NUMERICAL STUDY OF THE EFFECT OF WIND VELOCITY ON THE EXTRACTION AND PROPAGATION SMOKE OF A FIRE IN A ROAD TUNNEL

page 7
DOI: 10.1615/ICHMT.2009.CONV.340
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摘要

In this study, numerical simulation was carried out to analyze the effect of wind on the extraction and smoke behavior in a naturally ventilated tunnel. A FDS program was in numerical simulations. For air flow simulations, LES turbulence model and mixture fraction combustion model are used. This study showed that, the wind velocity is increased from 0.4 m/s to 1.4 m/s. The maximum of temperature in the tunnel is found to be less for wind velocity of 0.4 m/s. When the wind velocity increased the temperature distribution was titled in the direction of velocity.

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