Evidence of a characteristic ignition length of a flame
Université des Sciences et de la Technologie d’Oran Mohamed Boudiaf, Département de Physique, LEPM, BP 1505 El Mnaouer, Oran, Algerie
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Ignition process of vegetation from a cylindrical flame radiation is examined using Koo and Pagni  model. The radiation flux is power-law decreasing with distance , while the ignition time increases exponentially. This last behavior yields a characteristic length of fuel ignition from a flame, inducing a percolation type phase transition.
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