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


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.


center fire;fire size;computational fluid dynamics


  1. 김서영, 강병하, '건물화재시 연소가스의 유동', 공기조화냉동공학 논문집, 제26권, 제6호, pp. 507-515, 1997
  2. 박외철, 고경찬, '실내화재에 있어서의 대류열전달에 관한 수치연구 I. 수치법검증과 자연대류', 산업안전학회지, 제14권, 제2호, pp. 26-31, 1999
  3. 추병길, 조성곤 '밀폐공간내 화재에 의해 생성된 연소가스 분석 및 유동에 관한 연구', 산업안전학회지, 제12권, 제1호, pp. 77-93, 1997
  4. 정진용, 유홍선, 이재하, 홍기배, '실내공간에서 화재 발생위치에 따른 연기거동에 대한 실험연구', 대한기계학회 논문집 B권, 제26권, 제5호, pp. 703-709, 2002
  5. K. B. McGrattan, H. R. Bawn, R. G. Rehm, A. Hamins, G. P. Forney, J. E. Floyd and S. Hostikka, Fire Dynamics Simulator Technical Reference Guide v.3, NlST, U.S.A., 2002
  6. 박외철, '큰 개구부가 있는 공간의 화재와 제연의 대와류 모사', 한국화재 . 소방학회지, 제17권, pp. 7-12, 2003
  7. H. Xue, J. C. Ho. Y. M. Cheng, 'Comparison of Different Combustion Models in Enclosure Fire Simulation', Fire Safety J., Vol. 36, pp. 37-54, 2001 https://doi.org/10.1016/S0379-7112(00)00043-6
  8. D. H. Rie, J. O. Lew, Y. I. Kwon, J. W. Kim and J. H. Cho, 'A Study of Heat and Smoke Exhaust in Firing at Subway Platform installed with PSD', Journal of the KlIS, Vol. 16, No.5, pp. 17-21, 2001
  9. 행정자치부, 국내 최근 10년간의 화재통계, 2002