Stability of Rich, Organic Gellant-Based Fuel, Premixed Spray Flames

摘要

In this work the behavior of laminar rich, organic gellant-based premixed spray flames isrninvestigated for the first time. The pulsating evaporation of such spray droplets, that hasrnbeen observed experimentally, is accounted for. The numerical investigation discloses twornmain important findings. First, the phenomenon of the creation of flame hot-spots inrnorganic gellant-based spray diffusion flames, associated with the pulsating evaporation, isrnabsent in the premixed flame context. Second, the influence of the temperature of onset ofrnthe pulsations and their frequency on the propagation velocity of premixed gel spray flamesrnwere found to impact on whether the flame front moves steadily through the initial premixturernor whether it exhibits oscillations in its movement.