FIRETEC: A transport description of wildfire behavior

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Wildfires are a threat to human life and property, yet they are an unavoidable part of nature and in some instances they are necessary for the natural maintenance and evolution of forests. Investigators have attempted to describe the behavior (speed, direction, modes of spread) of wildfires for over fifty years. Current models for numerical description are mainly algebraic and based on statistical or empirical ideas. The authors describe, in contrast, a transport model called FIRETEC, which is a self-determining fire behavior model. The use of transport formulations connects the propagation rates to the full conservation equations for energy, momentum, species ... continued below

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6 p.

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Linn, R.R. & Harlow, F.H. December 1, 1997.

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Description

Wildfires are a threat to human life and property, yet they are an unavoidable part of nature and in some instances they are necessary for the natural maintenance and evolution of forests. Investigators have attempted to describe the behavior (speed, direction, modes of spread) of wildfires for over fifty years. Current models for numerical description are mainly algebraic and based on statistical or empirical ideas. The authors describe, in contrast, a transport model called FIRETEC, which is a self-determining fire behavior model. The use of transport formulations connects the propagation rates to the full conservation equations for energy, momentum, species concentrations, mass, and turbulence. In this text, highlights of the model formulation and results are described. The goal of the FIRETEC model is to describe average behavior of the gases and fuels. It represents the essence of the combination of many small-scale processes without resolving each process in complete detail. The FIRETEC model is implemented into a computer code that examines line-fire propagation in a vertical spatial cut parallel to the direction of advancement. With this code the authors are able to examine wind effects, slope effects, and the effects of nonhomogeneous fuel distribution.

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6 p.

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OSTI as DE98001607

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  • 78. American Meteorological Society annual meeting, Phoenix, AZ (United States), 11-16 Jan 1998

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  • Other: DE98001607
  • Report No.: LA-UR--97-3920
  • Report No.: CONF-980121--
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/505313 | External Link
  • Office of Scientific & Technical Information Report Number: 563175
  • Archival Resource Key: ark:/67531/metadc697453

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  • December 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • May 20, 2016, 1:15 p.m.

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Linn, R.R. & Harlow, F.H. FIRETEC: A transport description of wildfire behavior, article, December 1, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc697453/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.