Numerical studies on the interaction of sprinkler and smoke layer

Cunfeng Zhang, Wan Ki Chow

Research output: Journal article publicationConference articleAcademic researchpeer-review

10 Citations (Scopus)


Sprinklers are the most reliable method available for controlling building fires. Due to the cooling effect by water spray and drag force produced by the water droplets, sprinkler spray can lead to the loss of stability of the stratified smoke layer. In this paper, the cooling effect of water spray is studied. The smoke layer stability and the mass flow rate are also studied. The Fire Dynamics Simulator (FDS) code, based on the concept of large eddy simulation, is adopted in the present simulation. It has been found that the temperature decrease was almost linear to the working pressure of the sprinkler system. The dimensionless pressure to the smoke penetration depth can be expressed as power function. The spray has great effect on the smoke movement inside the compartment.
Original languageEnglish
Pages (from-to)453-462
Number of pages10
JournalProcedia Engineering
Publication statusPublished - 1 Jan 2013
Event9th Asia-Oceania Symposium on Fire Science and Technology, AOSFST 2012 - Hefei, China
Duration: 17 Oct 201220 Oct 2012


  • Cooling
  • Drag force
  • Mass flow
  • Sprinkler
  • Stability

ASJC Scopus subject areas

  • General Engineering


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