@article{ref1,
title="Fuelbreak effectiveness against wind-driven and plume-dominated fires: a 3D numerical study",
journal="Fire safety journal",
year="2021",
author="Frangieh, Nicolas and Accary, Gilbert and Rossi, Jean-Louis and Morvan, Dominique and Meradji, Sofiane and Marcelli, Thierry and Chatelon, François-Joseph",
volume="124",
number="",
pages="e103383-e103383",
abstract="The effectiveness of a fuelbreak, created in a homogeneous grassland on a flat terrain, was studied numerically. The analysis relies on 3D numerical simulations that were performed using a detailed physical-fire-model (FIRESTAR3D) based on a multiphase formulation. To avoid border effects, calculations were carried out by imposing periodic boundary conditions along the two lateral sides of the computational domain, reproducing that way a quasi-infinitely long fire front. A total of 72 simulations were carried out for various wind speeds, fuel heights, and fuelbreak widths, which allowed to cover a large spectrum of fire behaviour, ranging from plume-dominated fires to wind-driven fires. The results were classified in three main categories: 1- &quot;Propagation&quot; if fire crossed the fuelbreak with a continuous fire front, 2- &quot;Overshooting&quot; and &quot;Marginal&quot; if fire marginally crosses the fuelbreak with the formation of burning pockets, and 3- &quot;No propagation&quot; if fire does not cross at all the fuelbreak. The ratio of fuelbreak width to fuel height, marking the &quot;Propagation&quot;/&quot;No propagation&quot; transition, was found to be scaled with Byram's convection number Nc as 75.07 × Nc−0.46. The numerical results were also compared to an operational wildfire engineering tool (DIMZAL) dedicated to fuelbreaks dimensioning.<p /> <p>Language: en</p>",
language="en",
issn="0379-7112",
doi="10.1016/j.firesaf.2021.103383",
url="http://dx.doi.org/10.1016/j.firesaf.2021.103383"
}