CALCULATION OF SMOKE BEHAVIOR IN UNDERGROUND SUBWAY STATION USING LARGE EDDY SIMULATION(LES)

초록

Recently-developed FDS5 CFD code has employed a near-wall flow treatment method which is Werner-Wengle wall law. In this study, the wall law has been verified against DNS in the parallel plate. Then calculation were performed for the smoke behavior in underground subway station. Shin-geum-ho station was selected to be modeled for this study. The smoke-spread speeds with different fire strengths were calculated and compared with each other. LES method was used to solve the fire-driven flow. Each block is processed in a CPU and connected in parallel using MPI on clustered computers.