Simulation on indoor aerodynamics induced by an atrium fire

Abstract Indoor aerodynamics induced by a fire in an atrium was simulated with the fire field model CC-EXACT. The package was developed from the computational fluid dynamics (CFD) model EXACT designed for studying indoor air flow induced by heating, ventilation and air-conditioning system. The results are compared with those predicted by the two-layer fire zone model FIRST. Both EXACT and FIRST are available from the Building and Fire Research Laboratory, National Institute of Standards and Technology (NIST), USA. Three different types of atria commonly found in Hong Kong of the same space volume of 2000 m3 were studied. The results of the interface height and average temperature of the hot-air layer predicted by the field model CC-EXACT were compared with those predicted by the zone model FIRST. Recommendations on selecting a suitable plume model for zone modeling are made.

[1]  Zhenghua Yan,et al.  CFD and experimental studies of room fire growth on wall lining materials , 1996 .

[2]  Wan Ki Chow,et al.  Use of Computational Fluid Dynamics for Simulating Enclosure Fires , 1995 .

[3]  Wan Ki Chow,et al.  CFD Simulations on Balcony Spill Plume , 1998 .

[4]  James G. Quintiere,et al.  Enclosure Fire Dynamics , 1999 .

[5]  Weeratunge Malalasekera,et al.  An introduction to computational fluid dynamics - the finite volume method , 2007 .

[6]  Toshiyuki Hayase,et al.  A consistently formulated QUICK scheme for fast and stable convergence using finite-volume iterative calculation procedures , 1992 .

[7]  B. Mccaffrey.  Purely buoyant diffusion flames :: some experimental results , 1979 .

[8]  Wan Ki Chow,et al.  A comparison of the use of fire zone and field models for simulating atrium smoke-filling processes , 1995 .

[9]  Baki M. Cetegen,et al.  Entrainment and flame geometry of fire plumes , 1982 .

[10]  Wan Ki Chow,et al.  Review on Chemical Reactions of Burning Poly(methyl methacrylate) PMMA , 2002 .

[11]  H. Baum,et al.  Large eddy simulations of smoke movement , 1998 .

[12]  Wan Ki Chow,et al.  A PRELIMINARY DISCUSSION ON ENGINEERING PERFORMANCE- BASED FIRE CODES IN THE HONG KONG SPECIAL ADMINISTRATIVE REGION , 1999 .

[13]  K. E. Torrance,et al.  Upstream-weighted differencing schemes and their application to elliptic problems involving fluid flow , 1974 .

[14]  H. Ryou,et al.  A numerical study of atrium fires using deterministic models , 1999 .

[15]  Wan Ki Chow,et al.  Plume equations for studying smoke-filling process in atria with a zone model , 1997 .

[16]  George. V. Hadjisophocleous,et al.  Literature review of performance-based fire codes and design environment , 1998 .

[17]  Wan Ki Chow.  Simulation of Fire Environment for Linear Atria in Hong Kong , 1997 .

[18]  Glenn P. Forney,et al.  Analyzing and Exploiting Numerical Characteristics of Zone Fire Models , 1992 .

[19]  Andrew H. Buchanan,et al.  Implementation of performance-based fire codes , 1999 .

[20]  Jin B Fang,et al.  A numerical method for calculating indoor airflows using a turbulence model , 1990 .

[21]  Geoffrey Ingram Taylor,et al.  Turbulent gravitational convection from maintained and instantaneous sources , 1956, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.