Liquid jet breakup and subsequent droplet dynamics under normal gravity and in microgravity conditions

Content Provider	Semantic Scholar
Author	Suñol, Francesc González-Cinca, Ricard
Copyright Year	2015
Abstract	We present an experimental study on the characteristics of liquid jets in different configurations. We consider jets injected perpendicular to gravity, jets injected parallel to gravity, and jets injected in a microgravity environment. We study the role played by gravity in the jet breakup length and in the dynamics of the droplets generated after breakup. We analyze droplets obtained in the dripping and jetting regimes, focusing the study on their size, trajectory, oscillation, and rotation. The particularities of the considered injection configurations are analyzed. In normal gravity conditions, in the dripping and jetting regimes, the breakup length increases with the Weber number. The transition between these regimes occurs at Wecr ≈ 3.2. Droplets are notably larger in the dripping regime than in the jetting one. In the latter case, droplet mean size decreases as the liquid flow rate is increased. In microgravity conditions, droplet trajectories form a conical shape due to droplet bouncing after colli...
Starting Page	077102
Ending Page	077102
Page Count	1
File Format	PDF HTM / HTML
DOI	10.1063/1.4927365
Alternate Webpage(s)	http://upcommons.upc.edu/bitstream/handle/2117/81354/afile.pdf;jsessionid=7CDBCB8C9321BA7EB9E0BF57A05E7084?sequence=1
Alternate Webpage(s)	https://doi.org/10.1063/1.4927365
Volume Number	27
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article