Computational fluid dynamics simulation of fire-induced air flow in a large space building: Key points to note

Y. F. Li; Wan Ki Chow

Computational fluid dynamics simulation of fire-induced air flow in a large space building: Key points to note

Y. F. Li, Wan Ki Chow

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

3 Citations (Scopus)

Abstract

Fire-induced air flow in a large span building by computational fluid dynamics (CFD) will be discussed in this paper. The CFD model is based on Reynolds Averaging Navier-Stokes (RANS) equations with k-ε based turbulence model for predicting velocity, pressure and temperature distribution. This technique is commonly used in practical design for smoke management system. The fire is taken as a volumetric heat source and buoyancy effects are included in equations for the vertical momentum and turbulent parameters. Several key points to note in the simulation will be discussed. These are: Relaxation factor and convergence criteria. False diffusion. Sudden changes in flow parameters across the heat source. A large terminal hall with 1 MW fire is taken as an example to discuss the above points. The fire scenarios in a region of interest will be assessed by CFD.

Original language	English
Title of host publication	Proceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004
Pages	1163-1169
Number of pages	7
Publication status	Published - 1 Dec 2004
Event	2004 ASME Heat Transfer/Fluids Engineering Summer Conference, HT/FED 2004 - Charlotte, NC, United States Duration: 11 Jul 2004 → 15 Jul 2004

Conference

Conference	2004 ASME Heat Transfer/Fluids Engineering Summer Conference, HT/FED 2004
Country	United States
City	Charlotte, NC
Period	11/07/04 → 15/07/04

Keywords

Field model
Fire
Large space
Volumetric heat source

ASJC Scopus subject areas

Engineering(all)

Cite this

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title = "Computational fluid dynamics simulation of fire-induced air flow in a large space building: Key points to note",

abstract = "Fire-induced air flow in a large span building by computational fluid dynamics (CFD) will be discussed in this paper. The CFD model is based on Reynolds Averaging Navier-Stokes (RANS) equations with k-ε based turbulence model for predicting velocity, pressure and temperature distribution. This technique is commonly used in practical design for smoke management system. The fire is taken as a volumetric heat source and buoyancy effects are included in equations for the vertical momentum and turbulent parameters. Several key points to note in the simulation will be discussed. These are: Relaxation factor and convergence criteria. False diffusion. Sudden changes in flow parameters across the heat source. A large terminal hall with 1 MW fire is taken as an example to discuss the above points. The fire scenarios in a region of interest will be assessed by CFD.",

keywords = "Field model, Fire, Large space, Volumetric heat source",

author = "Li, {Y. F.} and Chow, {Wan Ki}",

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booktitle = "Proceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004",

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Computational fluid dynamics simulation of fire-induced air flow in a large space building: Key points to note. / Li, Y. F.; Chow, Wan Ki.

Proceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004. 2004. p. 1163-1169.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AB - Fire-induced air flow in a large span building by computational fluid dynamics (CFD) will be discussed in this paper. The CFD model is based on Reynolds Averaging Navier-Stokes (RANS) equations with k-ε based turbulence model for predicting velocity, pressure and temperature distribution. This technique is commonly used in practical design for smoke management system. The fire is taken as a volumetric heat source and buoyancy effects are included in equations for the vertical momentum and turbulent parameters. Several key points to note in the simulation will be discussed. These are: Relaxation factor and convergence criteria. False diffusion. Sudden changes in flow parameters across the heat source. A large terminal hall with 1 MW fire is taken as an example to discuss the above points. The fire scenarios in a region of interest will be assessed by CFD.

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