클러스터(슈퍼)컴퓨터에서의 수치전산모사를 통한 대심도 지하역사에서의 화재시 플랫폼 스크린도어에 의한 영향 분석

초록

In this study, Numerical 3D simulations as full scale models were performed to analyze the effects of the platform screen door on the fire driven smoke flow and temperature in the deeply underground subway station. All cases, a fire was occurred inside the train corresponding to the center of platform. Soongsil Univ. station (line number 7) which is the one of the deepest (47m) underground subway stations in the Seoul metros. was chosen for studying. The linux clustering computer with parallel computational method was employed to compute the heat and mass transfer eqn's. The fire driven flow was simulated using FDS code in which LES method was applied. The heat release rate (HRR) was 10MW and The ultrafast model was applied for the growing model of the fire source. The 10,000,000 structured grids were used. from the calculation result. the fire driven smoke flow in the station with-platform screen door was a little faster spread than the station without-platform screen door. But platform screen door had the effects of blocking the heat and smoke spreading to platform and waiting hall.