Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
권호 표지

Experimental Study on the Fire Whirl Characteristics of Oriental Oak Leaves

굴참나무 낙엽의 Fire Whirl 특성에 관한 실험연구

  • Hong, Ki-Bae (Department of Energy System Engineering, Chungju University) ;
  • Lee, Jae-Ha (Department of Mechanical Engineering, Chung-Ang University) ;
  • Bae, Seung-Yong (Department of Mechanical Engineering, Chung-Ang University) ;
  • Ryou, Hong-Sun (Department of Mechanical Engineering, Chung-Ang University)
  • 홍기배 (충주대학교 에너지시스템공학과) ;
  • 이재하 (중앙대학교 기계공학부) ;
  • 배승용 (중앙대학교 기계공학부) ;
  • 유홍선 (중앙대학교 기계공학부)
  • Published : 2009.08.30
Download PDF
⟨ Previous Next ⟩

Abstract

The fire whirl occurring in the urban and/or wildland fire is generated by the instabilities of atmosphere. The fire whirl is a rare phenomenon, but highly destructive because it has high inhalation and lift force. In this study, experimental study is performed with oriental oak leaves, for investigating of the fire whirl characteristics occurred in wildland fire. As a result of experiment, the circulation intensity increases as increasing of the induced air velocity, and then the fire whirl occurs. Also, the heat release rate and flame height increase 22% and 18% in highest circulation.

Keywords

References

  1. F.A. Williams, 'Urban and Wild Fire Phenomenoloty', Process in Energy and Combustion Science, Vol. 8, pp. 317 - 354, 1982 https://doi.org/10.1016/0360-1285(82)90004-1
  2. H.A. Musham, 'The Great Chicago Fire', Papers in Illinois State History and Transaction, pp. 69 -189, 1941
  3. H.W. Emmons and S.J. Ying, 'The Fire Whirl', Proceedings of the 11 th International Symposium on Combustion, pp. 475-488,1967
  4. K. Satoh and K.T. Yang, 'Experimental Observations ofSwiriing Fires', ASME Heat Transfer Division 335, pp. 393-400,1996
  5. F. Battaglia, K.B. McGrattan, R.G. Rehm and H.R. Baum, 'Simulating Fire Whirls', Combustion Theory and Modelling, Vol. 4, pp. 122-138, 2000
  6. 최상열, 유홍선, '회전강도가Fite Whirl의 특성에 미치는 영향에 관한 실험연구', 한국안전학회지, 제20권, 제2호, pp. 11-17,2005
  7. 배승용, 성건혁, 유홍선, 홍기배, 김동현, '발열량의 차이에 따른 파이어훨(Fite Whirl)의 유동특성', 한국유체공학학술대회, pp.609-613, 2008
  8. A.Y. Snegirev, lA. Marsden, l Francis, G.M. Makhviladze, 'Numerical studies and experimental observations of whirling flames', International Journal of Heat and Mass Transfer, Vol. 47, No. 12-13, pp. 2523-2539,2004 https://doi.org/10.1016/j.ijheatmasstransfer.2004.02.002
  9. A. Hamins, T. Kashiwagi and R. Buch, 'Characteristics of Pool Fire Burnings', Fire Resistance of Industrial Fluid, ASTM Special Technical Publication, Vol. 1284, pp. 15-41, 1995
  10. E.E. Zukoski, T. Kubota and B.M. Cetegen, 'Entrainment in Fire Plumes', Fire Safety Journal, Vol. 3, pp. 107 -121,1981 https://doi.org/10.1016/0379-7112(81)90037-0
  11. D.H Kim, T. Tanaka, M.B. Lee, 'A Numerical Study of Flame Tilt by Slope and Wind Added', International Wildfire Management Conference, 2009