Effect of droplet size on the jet breakup characteristics of n-butanol during impact on a heated surface

Jet breakup during droplet impacted on heated surface has received wide concerns due to its regularity. The Weber number (We) is a common used dimensionless parameter to classify and analyze the phenomenon, but it is unable to summarize all detailed phenomenon variations and related theory. Thus, th...

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Veröffentlicht in:Journal of Traffic and Transportation Engineering (English Edition) 2020-06, Vol.7 (3), p.320-330
Hauptverfasser: Wu, Han, Tang, Longmin, Cen, Chunze, Lee, Chia-Fon
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Sprache:eng
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Zusammenfassung:Jet breakup during droplet impacted on heated surface has received wide concerns due to its regularity. The Weber number (We) is a common used dimensionless parameter to classify and analyze the phenomenon, but it is unable to summarize all detailed phenomenon variations and related theory. Thus, the effect of droplet size on jet breakup was investigated by considering its significant difference in various scenarios. The behavior of n-butanol droplets with diameter range from 1.71 mm to 2.84 mm impacts a heated surface with jet breakup was recorded by backlit technology. Three parameters, the jet breakup time, the jet breakup length and the jet ligament diameter, were analyzed to illustrate the phenomenon. The results showed that these parameters are affected by the droplet size largely at 10 < We 
ISSN:2095-7564
DOI:10.1016/j.jtte.2020.02.001