Browsing School of Technology by Author "Ahmed, Samer F."

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  • Flame in methane jet after spark ignition 

    Ahmed, Samer F.; Mastorakos, Epaminondas (2009-05-21)
    The video shows the flame motion following spark ignition in a turbulent methane jet. The flow conditions were: 30% air, 70% CH4, jet velocity 12.5m/s & 25m/s, framing rate 4200 fps, spark at r=0, z=40d (40 jet diameters; ...

  • Ignition of bluff-body methane flames 

    Ahmed, Samer F.; Marchione, Teresa; Balachandran, R.; Mastorakos, Epaminondas; Triantafyllidis, A. (2009-05-21)
    The movies show the ignition process following a spark in a bluff-body stabilised methane non-premixed flame. The flow is described in: S.F. Ahmed, R. Balachandran, T. Marchione, E. Mastorakos, Spark ignition of turbulent ...

  • Ignition of spray flame with multiple spark 

    Marchione, Teresa; Ahmed, Samer F.; Mastorakos, Epaminondas (2009-05-25)
    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 ...