Publikationsdatum:
2015-03-10
Beschreibung:
Water drops falling on a deep pool can either coalesce to form a vortex ring or splash, depending on the impact conditions. The transition between coalescence and splashing proceeds via a number of intermediate steps, such as thick and thin jet formation and gas-bubble entrapment. We perform simulations to determine the conditions under which bubble entrapment and jet formation occur. A regime map is established for Weber numbers ranging from 50 to 300 and Froude numbers from 25 to 600. Vortex ring formation is seen for all of the regimes; it is greater for the coalescence regime and less in the case of the thin jet regime. © 2015 Cambridge University Press.
Print ISSN:
0022-1120
Digitale ISSN:
1469-7645
Thema:
Maschinenbau
,
Physik
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