Sixth Symposium on Fire and Forest Meteorology

5.4

Experiments and modeling of fire spread through individual trees

William Mell, National Institute of Standards and Technology, Gaithersburg, MD; and A. Maranghides and R. Rehm

Fire spread through suspended vegetation, such as tree crowns, is a basic component of wildland fires. Most models of fire spread do not resolve the burning of individual trees. Instead, fire spread through a forest canopy, representing a collection tree crowns in an average sense, is modeled. There are a number of fire problems where an understanding of fire spread at a level that includes individual trees is needed. Among these fire problems are: the effect of a fire on tree health, the influence of a given fuel treatment on fire intensity, and fire spread through the intermix of vegetation and structures in the wildland-urban interface (WUI). NIST currently has an experimental and modeling project that seeks to improve our understanding of WUI fires. In this talk a number of experiments on the burning of different sized trees will be described. The results of these experiments will be presented and compared to three-dimensional, physics based, computer simulations.

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Session 5, Core Fire Science
Thursday, 27 October 2005, 8:30 AM-10:15 AM, Ladyslipper

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