A Study of Thermal and Air Distribution Forcast by Firing in the Longitudinal Tunnel (In Yimgo - 4th Tunnel)

종류식 터널내에서 화재에 의한 열 및 기류분포 예측에 관한 연구

This study is aimed to analyze the floe patterns and thermal characteristics by computer simulation under the variations of fire strength for Daegu-Pahang Yimgo-4th tunnel, from which flow and heat distributions are predicted In the longitudinal tunnel. Though the results of numerical computations, followings are found; one is that the volume flow rate is discontinuously increasing as closer to fire location, and the other is that a critical design to get faster flow rate is required because of existence of backlayer flow for the high fire strength in view of safety for the people in fire of the tunnel.