상대식 지하역사 승강장에서 자연풍이 화재에 미치는 영향 예측 연구

초록

In this study effects of the natural wind velocities are studied numerically to examine the flow characteristics of the smoke and heat generated from a fire on a separate platform of an underground subway station. Four different natural wind velocities and the application of the identical extraction flowrate in all cases are considered for the numerical analyses. The results show that increase in natural wind velocities causes a rapid spread of the fire along the tunnel and lowers the temperature and smoke density over the platform. The numerical results also show that the natural wind results in rapid spread of the smoke and heat over the platform into the wind direction.

키워드