Numerical simulation on cooling of the fire-induced air flow by sprinkler water sprays

Wan Ki Chow, Nai Kong Fong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

37 Citations (Scopus)


By the air drag and cooling effect of water droplets, the cooling of the fire-induced hot air flow by sprinkler water sprays is studied by using a three-dimensional field modelling technique. This gives a 'microscopic' description of visualizing how the sprinkler interacts with a smoke layer. Macroscopic parameters, such as drag-to-buoyancy ratio, convective cooling rate, etc., can be computed accordingly. With such a model, it is possible for the fire-safety engineers to design proper location, type and performance of sprinkler systems. Since experimental data for validating the model are absent, it is concluded that measurement from full-scale burning tests in a sprinklered compartment is needed.
Original languageEnglish
Pages (from-to)263-290
Number of pages28
JournalFire Safety Journal
Issue number4
Publication statusPublished - 1 Jan 1991

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Safety, Risk, Reliability and Quality
  • Physics and Astronomy(all)

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