CALCULATION OF SMOKE SPEAD-DIFFERENCE CAUSED BY DIFFERENT VENTILATION CAPACITY AND DIFFERNET FIRE STRENGTH IN UNDERGROUND STATION

초록

Calculations were performed for the smoke spread-speed caused by fire-strength difference and ventilation-capability difference in underground subway station. Shin-geum-ho station was selected to be modeled for this study. Firstly, the smoke-spread speed with different fire strengths were calculated and compared with each other. Secondly, the smoke-spread speed differences caused by between the originally-designed-ventilation-capacity and measured-ventilation-capacity were calculated and compared. The FDS (Fire Dynamics Simulator) code was employed in this study. LES (Large Eddy Simulation) method was used to solve the fire-driven flow. Each block is processed in a CPU and calculated parallelly using MPI (Message Passing Interface) in clustered computers