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 proceedingConference article published in proceeding or bookAcademic researchpeer-review

4 Citations (Scopus)


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 languageEnglish
Title of host publicationProceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004
Number of pages7
Publication statusPublished - 1 Dec 2004
Event2004 ASME Heat Transfer/Fluids Engineering Summer Conference, HT/FED 2004 - Charlotte, NC, United States
Duration: 11 Jul 200415 Jul 2004


Conference2004 ASME Heat Transfer/Fluids Engineering Summer Conference, HT/FED 2004
Country/TerritoryUnited States
CityCharlotte, NC


  • Field model
  • Fire
  • Large space
  • Volumetric heat source

ASJC Scopus subject areas

  • Engineering(all)

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