MATHEMATICAL MODELING OF FOREST FIRES INITIATION, SPREAD AND IMPACT ON ENVIRONMENT

Abstract

A mathematical model of surface and crown forest fires spread and impact is considered. A three-dimensional
multiphase, physic based model is used. The boundary-value problem is solved numerically by finite volume method. This
model has been applied to describe the process of initiation and spread of surfaces forest fires and their transfer into crown of
forest fires. The results of numerical solutions present the distribution of the main functions of the process (the velocity field,
the temperature of gas and solid phase, the concentration of the oxygen, gas product of pyrolysis and inert components, etc.)
over time. Scenarios modeled within this study represent a possible approach to the preliminary assessment of risk and
should be verified by more detailed computational fluid dynamic (CFD) modeling