Regimes during liquid drop impact on a liquid pool
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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.
2017 ◽
Vol 208
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pp. 012045
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2015 ◽
Vol 219
(3)
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pp. 392-403
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1992 ◽
Vol 5
(3)
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pp. 274-276
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