A numerical model that enables the simulation of polydispersed spray behavior while allowing the resolution of droplet-scale features is described. This Lagrangian model is based on a sectional approach and captures the effect of polydispersity, droplet initial speed and direction. It is designed for flexibility in that it can be used for a variety of droplet-based processes. The model performance is illustrated using two basic configurations: spray combustion and water mist fire suppression. The spray combustion case shows how the droplet-scale resolution can be critical since phase equilibrium is controlled by droplet surface temperature, which cannot be adequately captured using a lump-parameter model. The water mist case allows a demonstration of the basic features of the spray model such as the ability to characterize the ability of smaller droplets to get close enough to a fire or a hot surface.
Droplet-Resolved Dilute Spray Evaporation Model
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Johnson, SB, Lewis, SJ, & Delplanque, J. "Droplet-Resolved Dilute Spray Evaporation Model." Proceedings of the ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. Volume 4. Charlotte, North Carolina, USA. July 11–15, 2004. pp. 241-244. ASME. https://doi.org/10.1115/HT-FED2004-56898
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