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CFD Analysis of Fire in a Forced Ventilated Enclosure
L. M. Tam1,2; V. K. Sin1; S. K. Lao1; H. F. Choi1
2006
Conference Namethe Tenth International Conference on Enhancement and Promotion of Computational Methods in Engineering Science (EPMESC' X)
Source PublicationProceedings of the Tenth International Conference on Enhancement and Promotion of Computational Methods in Engineering Science (EPMESC' X)
Pages172
Conference DateAugust 21-23, 2006
Conference PlaceSanya, Hainan, China
Abstract

Due to the rapid development of computer technology and numerical technique, many complex thermalfluid phenomena such as fire dynamics can now be simulated by computational fluid dynamics (CFD). StarCD, a general-purpose CFD package with finite volume method, is used to simulate the experimental data [1] obtained at the Lawrence Livermore National Laboratory (LLNL). The experiment consists of a fire in a room with a ventilated exit and an air inlet. An enclosure of 6 m long, 4 m wide and 4.5 m high, with an air intake of 2 m wide and 0.12 m high, has been investigated. Air was ventilated at a constant rate of 0.5 m 3 /s at the outlet of 0.65 m x 0.65 m. A heat plate model was implemented to represent the natural pool fire at the center of the floor. Combustion chemical reactions were excluded [2]. This study employed k-e model together with Discrete Ordinates Method (DOM) radiation model to predict the turbulent flow and radiative heat transfer in the enclosure. The energy absorbed by soot particles as well as the conjugate heat transfer to the wall have been taken into consideration. The simulation results show good agreement with the experimental data. Moreover, the data indicated that 70% of heat generated by fire was absorbed by the walls, the floor, and the ceiling. It has also been concluded that radiation is the dominant mode of heat transfer. This study demonstrates that StarCD is capable of modeling fire generated heat transfer in a forced ventilated enclosure.

KeywordHeat Transfer Dominant Mode Radiative Heat Transfer Computational Fluid Dynamic Finite Volume Method
DOIhttps://doi.org/10.1007/978-3-540-48260-4_18
Language英语
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Document TypeConference paper
专题Faculty of Science and Technology
DEPARTMENT OF ELECTROMECHANICAL ENGINEERING
Affiliation1.Department of Electromechanical Engineering, Faculty of Science and Technology, University of Macau, Macau, China
2.Institute for the Development and Quality, Macau, China
First Author AffilicationFaculty of Science and Technology
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L. M. Tam,V. K. Sin,S. K. Lao,et al. CFD Analysis of Fire in a Forced Ventilated Enclosure[C],2006:172.
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