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    Author(s): Anthony S. Bova; William E. Mell; Chad M. Hoffman
    Date: 2016
    Source: International Journal of Wildland Fire. 25(2): 229-241.
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: Download Publication  (975.0 KB)

    Description

    Simulating an advancing fire front may be achieved within a Lagrangian or Eulerian framework. In the former, independently moving markers are connected to form a fire front, whereas in the latter, values representing the moving front are calculated at points within a fixed grid. Despite a mathematical equivalence between the two methods, it is not clear that both will produce the same results when implemented numerically. Here, we describe simulations of fire spread created using a level set Eulerian approach (as implemented in the wildland-urban interface fire dynamics simulator, WFDS) and a marker method (as implemented in FARSITE). Simulations of surface fire spread, in two different fuels and over domains of increasing topographical complexity, are compared to evaluate the difference in outcomes between the two models. The differences between the results of the two models are minor, especially compared with the uncertainties inherent in the modelling of fire spread

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Bova, Anthony S.; Mell, William E.; Hoffman, Chad M. 2016. A comparison of level set and marker methods for the simulation of wildland fire front propagation. International Journal of Wildland Fire. 25(2): 229-241. https://doi.org/10.1071/WF13178.

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    Keywords

    WFDS, Farsite.

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