publication . Article . Other literature type . 1996

A Coupled Atmosphere-Fire Model: Role of the Convective Froude Number and Dynamic Fingering at the Fireline

Janice L. Coen; Packham; Mary Ann Jenkins; TL Clark;
Open Access
  • Published: 01 Dec 1996 Journal: International Journal of Wildland Fire, volume 6, page 177 (issn: 1049-8001, Copyright policy)
  • Publisher: CSIRO Publishing
Abstract
<jats:p>A numerical atmospheric model is coupled with a simple dry eucalyptus forest fire model to create a wildfire simulation model. This is used to show how certain atmospheric conditions can lead to commonly observed forest fire behavior. Using short line fires, simulations show that with moderate winds, the fire line interacts with the updraft ahead of it causing the fire line to curve forward into a conical shape. Other experiments show that when ambient winds change with height, a pair of rotating updrafts at the curved fire front can touch down within the fire and break up the fire line. We also demonstrate 'dynamic fingering', in which the rotating colu...
Subjects
arXiv: Physics::Atmospheric and Oceanic Physics
free text keywords: Ecology, Forestry, Fire regime, Atmospheric model, Forest-fire model, Froude number, symbols.namesake, symbols, Convection, Geography, Wildfire modeling, computer.software_genre, computer, Tornado, Meteorology, Lightning
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