Mathematical modeling of wildland fire initiation and spread

被引：14

作者：

Agranat, Vladimir ^{[1
]}

Perminov, Valeriy ^{[2
]}

机构：

[1] Appl Computat Fluid Dynam Anal, Thornhill, ON, Canada

[2] Tomsk Polytech Univ, Tomsk, Russia

来源：

ENVIRONMENTAL MODELLING & SOFTWARE | 2020年 / 125卷

关键词：

Wildland fire; Combustion; Rate of spread; Software; FLAME CHARACTERISTICS; BEHAVIOR; BED;

D O I：

10.1016/j.envsoft.2020.104640

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

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-epsilon 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.

引用

页数：7

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