Study of wildfire in-draft flows for counter fire operations

R. Roxburgh, G. Rein

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

The use of counter-fires to gain control over wildfires is a technique used by some fire services around the world. A fire is purposely lighten ahead of the wildfire and the buoyancy induced in-drafts pull it towards the flame front thus creating a fire break of burnt fuel. Well used, this technique is fast, effective and safe. However, no technical research has been done on the subject. Without understanding of the mechanisms, counter-firing remains a difficult technique and can lead to unnecessary risks being taken or opportunities lost. This paper uses computational fluid dynamics to study the in-draft created around wildfires. A generalized structure of the in-draft velocity profile composed of three zones is observed. The length of the different zones are analysed to find the dependence with fire intensity and wind velocity.

Original languageEnglish
Title of host publicationMODELLING, MONITORING AND MANAGEMENT OF FOREST FIRES
EditorsJ DeLasHeras, CA Brebbia, D Viegas, V Leone
Place of PublicationSOUTHAMPTON
PublisherWIT PRESS
Pages13-22
Number of pages10
ISBN (Print)978-1-84564-141-2
Publication statusPublished - 2008

Keywords / Materials (for Non-textual outputs)

  • entrainment
  • fire fighting
  • suppression
  • back fire
  • computer modelling
  • CFD
  • FDS

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