Breakup of double emulsion droplets in a tapered nozzle

Jiang Li, Haosheng Chen, Howard A. Stone

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


When double emulsion droplets flow through a tapered nozzle, the droplets may break up and cause the core to be released. We model the system on the basis of the capillary instability and show that a droplet will not break up when the tilt angle of the nozzle is larger than 9°. For smaller tilt angles, whether the droplet breaks up also depends on the diameter ratio of the core of the droplet to the orifice of the nozzle. We verified this mechanism by experiments. The ideas are useful for the design of nozzles not only to break droplets for controlled release but also to prevent the droplet from rupturing in applications requiring the reinjection of an emulsion.

Original languageEnglish (US)
Pages (from-to)4324-4327
Number of pages4
Issue number8
StatePublished - Apr 19 2011

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Spectroscopy
  • General Materials Science
  • Surfaces and Interfaces
  • Electrochemistry


Dive into the research topics of 'Breakup of double emulsion droplets in a tapered nozzle'. Together they form a unique fingerprint.

Cite this