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The Interaction of Fuel Droplets With Heated Interposed Surfaces in IC Engines
Technical Paper
2005-24-084
ISSN: 0148-7191, e-ISSN: 2688-3627
Sector:
Language:
English
Abstract
This paper reports an experimental study aimed at characterizing
the effects of the topography of surfaces impacted by the fuel
sprays on the process of mixture preparation. The experiments
consider a simplified flow configuration and include heated targets
with different surface roughness and temperatures, relevant for IC
engines.
The analysis addresses the onset of splash, which involves the
identification and characterization of different disintegration
mechanisms. The characterization is performed in terms of crown
morphology, temporal evolution and secondary droplet
characteristics, for different boiling regimes. The results are
interpreted to better understand the influence of the nature of the
surface in the efficiency of the disintegration mechanisms.