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Ignition of spray flame with multiple spark

By Teresa Marchione, Samer F. Ahmed and Epaminondas Mastorakos


The movies have been taken at 4000 fps. The spark is placed at a distance z from the nozzle and at 5mm from the enclosure. The ignition unit delivers at 100Hz a spark lasting 8ms, followed by 2ms of no activity. The front and side views are shown. The main flow is from top to botton and the swirling flow from right to left (evident in the front view movies). The flame ignites a long time after the spark sequence has begun. The work is described in: T. Marchione, S.F. Ahmed, E. Mastorakos, "Ignition of turbulent swirling n-heptane spray flames using single and multiple sparks", Combustion and Flame 156 (2009) 166–180

Topics: Spark ignition, spray flame
Year: 2009
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Provided by: Apollo
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