Hydrodynamics of Droplet Impingement on a Heated Surface

Paper #:
  • 930919

Published:
  • 1993-03-01
Citation:
Naber, J. and Farrell, P., "Hydrodynamics of Droplet Impingement on a Heated Surface," SAE Technical Paper 930919, 1993, https://doi.org/10.4271/930919.
Pages:
18
Abstract:
The impingement of liquid fuels on surfaces in IC engines affects performance and emissions. To better understand liquid/solid interactions, the impact of single droplets on a healed surface was experimentally examined. The droplet impingement was photographed with a high speed cine camera to obtain a history of the hydrodynamics of the impingement process. Images obtained from the cine photography were inspected to determine hydrodynamic regimes: wetting, transition, and non-wetting, associated with the specific impingement conditions (droplet size, velocity, surface temperature, and ambient pressure). Images from selected impingement conditions were further analyzed to quantify the atomization resulting from the impingement.
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