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Title: Modeling wildland fire propagation with level set methods

Author: Mallet, V.; Keyes, D.E; Fendell, F.E.;

Date: 2009

Source: Computers & Mathematics with Applications 57(7): 1089-1101

Publication Series: Scientific Journal (JRNL)

Description: Level set methods are versatile and extensible techniques for general front tracking problems, including the practically important problem of predicting the advance of a fire front across expanses of surface vegetation. Given a rule, empirical or otherwise, to specify the rate of advance of an infinitesimal segment of fire front arc normal to itself (i.e., given the fire spread rate as a function of known local parameters relating to topography, vegetation, and meteorology), level set methods harness the well developed mathematical machinery of hyperbolic conservation laws on Eulerian grids to evolve the position of the front in time. Topological challenges associated with the swallowing of islands and the merger of fronts are tractable. The principal goals of this paper are to: collect key results from the two largely distinct scientific literatures of level sets and fire spread; demonstrate the practical value of level set methods to wildland fire modeling through numerical experiments; probe and address current limitations; and propose future directions in the simulation of, and the development of, decision-aiding tools to assess countermeasure options for wildland fires. In addition, we introduce a freely available two-dimensional level set code used to produce the numerical results of this paper and designed to be extensible to more complicated configurations.

Keywords: Wildland fire spread, Front propagation, Level set methods, Multivac software, Hamilton-Jacobi equations

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Mallet, V.; Keyes, D.E; Fendell, F.E. 2009. Modeling wildland fire propagation with level set methods. Computers and mathematics with applications 57(7):1089-1101

 


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