A Numerical Study of the Effect off Fire Growth Model on Fire Characteristics in a Carriage

화재 성장 모델이 객차내 화재 특성에 미치는 영향에 관한 수치해석적 연구

  • 김성찬 (중앙대학교 미래신기술연구소) ;
  • 유홍선 (중앙대학교 기계공학부) ;
  • 최영기 (중앙대학교 기계공학부) ;
  • 김동현 (한국철도기술연구원 공기유동연구그룹)
  • Published : 2004.09.01


The present study investigates the effect of fire growth model on fire development characteristics in a carriage. The parallel processing version of FDS code is used to simulate the fire driven flow in a carriage and two types of fire growth model which are flame spread model and t$^2$ model are examined for the same geometrical condition. The heat release rates(HRR) of both model are similar each other until 30 s after ignition, but the flame spread model predicts 5 times higher than those of the t$^2$ fire model during the quasi-steady fire period. Maximum heat release rate in the case of flame spread model reaches about to 12 MW at 100 s after fire ignition. Also, various database of fire properties for combustible materials and more elaborate combustion model considering the flame spreading phenomena are required for better predictions of fire development characteristics using numerical simulation.


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