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|Author(s):||Ronald G. Rehm;|
|Title:||The Effects of Winds From Burning Structures on Ground-Fire Propagation at the Wildland-Urban Interface|
|Published:||June 01, 2008|
|Abstract:||A simple physics-based mathematical model is developed for prediction of the propagation of a grass-fire front driven by an ambient wind and by entrainment winds generated from one or moreburning structures. This model accounts for the heterogeneous nature of the burning in a particular wildland-urban-interface (WUI) setting, where the entrainment from fundamentally three-dimensional structure-fire plumes can change the propagation of a two-dimensional ground-fire front. Data on grass and structure fires are presented and compared to justify the model. Scaling effects on the fire-front propagation-speed are given as afunction of the location of the front, of the heat release rate of a single burning structure, of the total number of burning structures and of the burning-structure density. Also, detailedfront propagation changes due to a single and multipleburning-house scenarios are presented.|
|Citation:||Canadian Journal of Forest Research-Revue Canadienne De Recherche Forestiere|
|Pages:||pp. 477 - 496|
|Keywords:||burning structures,fire research,grass fires,heterogeneous burning,mathematical model,model of fire propagation,physics-based model,plume-entrainment wind,wildland-urban interface|
|PDF version:||Click here to retrieve PDF version of paper (2MB)|