Use of Water Curtains to Prevent Ignition by Firebrands
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Spotting ignition by airborne firebrands is one of key mechanisms in forest fire propagation. This paper makes an evaluation of possible use of water sprays to prevent propagation of firebrands. Presented mathematical model allows the evaluation of required spray parameters to be made. The model is based on Lagrangian approaches for both firebrands and water droplets. Analytical solutions are obtained for the trajectories. Parameters of the spray required to prevent firebrand propagation are evaluated in terms of the spray outmost discharge angles and flow rate. © Springer 2015. Selection and peer-review under responsibility of the Asia-Oceania Association for Fire Science and Technology.
KeywordsFirebrands Water spray Lagrangian models
External force (gravity)
Force exerted by spray
The author is grateful to Inga Novozhilov for her help in preparing the manuscript.
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