Mathematical modeling of wildland fire initiation and spread

Vladimir Agranat, Valeriy Perminov

Research output: Contribution to journalArticle

Abstract

The aim of this paper is to create a user-friendly computational tool for analysis of wildland fire behavior and its effect on urban and other structures. A physics-based multiphase Computational Fluid Dynamics (CFD) model of wildfire initiation and spread has been developed and incorporated into the multi-purpose CFD software, PHOENICS. It accounts for all the important physicochemical processes: drying, pyrolysis, char combustion, turbulent combustion of gaseous products of pyrolysis, exchange of mass, momentum and energy between gas and solid phase, turbulent flow and convective, conductive and radiative heat transfer. Turbulence is modeled by using a RNG k-ε model and the radiative heat transfer is represented by the IMMERSOL model. The Arrhenius-type kinetics are used for heterogeneous reactions and the eddy-breakup approach is applied for gaseous combustion. The model has been validated using the experimental data.

Original languageEnglish
Article number104640
JournalEnvironmental Modelling and Software
Volume125
DOIs
Publication statusPublished - Mar 2020

Fingerprint

Fires
combustion
Computational fluid dynamics
Pyrolysis
computational fluid dynamics
pyrolysis
Heat transfer
modeling
heat transfer
fire behavior
Turbulent flow
Dynamic models
Ion exchange
Momentum
Drying
Turbulence
Physics
turbulent flow
wildfire
momentum

Keywords

  • Combustion
  • Rate of spread
  • Software
  • Wildland fire

ASJC Scopus subject areas

  • Software
  • Environmental Engineering
  • Ecological Modelling

Cite this

Mathematical modeling of wildland fire initiation and spread. / Agranat, Vladimir; Perminov, Valeriy.

In: Environmental Modelling and Software, Vol. 125, 104640, 03.2020.

Research output: Contribution to journalArticle

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