A Numerical Study of a Room Fire for Fire Sizes I. Center Fire

FDS를 이용한 실내화재 모사의 문제점 I. 중심형 화재

  • Ko, Kyung-Chan (Department of Safety Engineering, Graduate School, Pukyong National University) ;
  • Park, Woe-Chul (Department of Safety Engineering, Pukyong National University)
  • 고경찬 (부경대학교 대학원 안전공학과) ;
  • 박외철 (부경대학교 안전공학과)
  • Published : 2004.03.01

Abstract

The Fire Dynamics Simulator (FDS) was applied to a center fire in a room, of which dimensions were 1.8m${\times}$1.38m with an opening of 0.45m${\times}$1.2m doorway, to evaluate the numerical method. The time-variation of temperature at a top point of thedoorway centerline and distributions of evaluate the numerical method. The time-variation of temperature at a top point of the doorway centerline and distributions of average temperature along the doorway centerline and corner stack were compared with measurements for three different fire sizes, 7.65, 21.25 and 51.71kW. The results showed FDS predicted a very rapid fire growth compared with the experiment for all the three fire sizes, that is an importand shortcoming of FDS in compartment fire simulations. The average temperature distributions, and heights of hot gas layers and neutral planes in steady state were in reasonable agreement with the measurements.

Keywords

center fire;fire size;computational fluid dynamics

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