A new model of wildland fire simulation

A new mathematical algorithm has been developed to model the propagation of a moving flame front in forests or grasslands in order to simulate the spread of the perimeter of a wildfire. The fire is defined as a closed contour propagating outwards at a velocity directly linked to the physical process of combustion. This approach separates the propagation of the flame front from the combustion itself. The aim of the present work is to estimate the propagation of a flame front with time and to assess the actual abilities of this new mathematical description of the contour. The fire contour is modelled by a complex Fourier series function. The model of the digital simulation code PROLIF is presented with a description of the first tests.