年間 12 号発行
ISSN 印刷: 1044-5110
ISSN オンライン: 1936-2684
Indexed in
EFFECT OF A FUEL SPRAY ON EDGE FLAME PROPAGATION
要約
In this paper, results of numerical simulations of edge flame propagation in the presence of a spray of liquid droplets in a three-dimensional channel are presented for the first time. The fuel vapor and droplets and gaseous oxidizer are supplied in a counterflow. Attention is focused on the way the spray-related parameters (initial droplet load and the vaporization Damköhler number) impact on the ignition and extinction fronts in the strained opposed flow mixing layer. Unlike similar studies of purely gaseous flames in the same configuration, hysteresis is found to occur here under certain operating conditions. This indicates how the local thermal and chemical distributions that develop upon applying a source of ignition play such a critical part in determining whether ignition will occur.
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Greenberg J.B., Kagan L.S., Sivashinsky G.I., A numerical study of polydisperse spray flame ignition and extinction fronts in a mixing layer, Combustion Theory and Modelling, 17, 6, 2013. Crossref
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Carpio Jaime, Martínez-Ruiz Daniel, Liñán Amable, Sánchez Antonio L., Williams Forman A., Hysteresis in the Vaporization-Controlled Inertial Regime of Nonpremixed Counterflow Spray Combustion, Combustion Science and Technology, 192, 3, 2020. Crossref
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Rajamanickam Prabakaran, Coenen Wilfried, Sánchez Antonio L., Williams Forman A., Influences of stoichiometry on steadily propagating triple flames in counterflows, Proceedings of the Combustion Institute, 37, 2, 2019. Crossref