Dripping to jetting transitions in coflowing liquid streams

Andrew S. Utada, Alberto Fernandez-Nieves, Howard A. Stone, David A. Weitz

Research output: Contribution to journalArticlepeer-review

751 Scopus citations


A liquid forced through an orifice into an immiscible fluid ultimately breaks into drops due to surface tension. Drop formation can occur right at the orifice in a dripping process. Alternatively, the inner fluid can form a jet, which breaks into drops further downstream. The transition from dripping to jetting is not understood for coflowing fluid streams, unlike the case of drop formation in air. We show that in a coflowing stream this transition can be characterized by a state diagram that depends on the capillary number of the outer fluid and the Weber number of the inner fluid.

Original languageEnglish (US)
Article number094502
JournalPhysical review letters
Issue number9
StatePublished - Aug 28 2007

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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