Browsing School of Technology by Author "Mastorakos, Epaminondas"

Now showing items 1-9 of 9

  • Autoignition in turbulent two-phase flows 

    Borghesi, Giulio (University of CambridgeDepartment of Engineering, 2013-01-08)
    This dissertation deals with the numerical investigation of the physics of sprays autoigniting at diesel engine conditions using Direct Numerical Simulations (DNS), and with the modelling of droplet related effects within ...

  • Autoignition of a H2 jet in hot air flow 

    Markides, Christos N; Mastorakos, Epaminondas (2009-05-21)
    The movie (taken with a conventional video camera at 30fps) shows the various operation modes of the Cambridge Autoignition experiment, described in: C.N. Markides, E. Mastorakos, An experimental study of hydrogen ...

  • Autoignition of droplets in hot air flow 

    Gordon, Robert; Mastorakos, Epaminondas (2010-09-09)
    A single-droplet generator has been used to inject fuel droplets of various sizes and chemical composition into a hot turbulent air flow. The ensuing autoignition and flame behaviour has been recorded with a fast camera. ...

  • Direct numerical simulations of spray spark ignition 

    Neophytou, Alexandre; Cant, Stewart R.; Mastorakos, Epaminondas (Engineering Department, 2010-09-09)
    Direct Numerical Simulations (DNS) of a mono-disperse spray in a turbulent flow have been used to explore the nature of flame kernels when a spark is deposited in the spray. The simulations use complicated chemistry and ...

  • Experiments on flame blow-off 

    Kariuki, James; Cavaliere, Davide Emiglio; Dawson, James; Mastorakos, Epaminondas (2012)

  • 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 ...

  • Simulations of turbulent swirl combustors 

    Ayache, Simon Victor (University of CambridgeDepartment of EngineeringSelwyn College, 2012-07-03)
    This thesis aims at improving our knowledge on swirl combustors. The work presented here is based on Large Eddy Simulations (LES) coupled to an advanced combustion model: the Conditional Moment Closure (CMC). Numerical ...