Impact of viscosity ratio on the dynamics of droplet breakup in a microfluidic flow focusing device

Wingki Lee, Lynn M. Walker, Shelley L. Anna

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

The flow focusing geometry is one of several used in microfluidic devices to form monodisperse emulsion droplets. The addition of surfactant leads to the observation of a thread formation regime which has features similar to tip-streaming seen in deformed droplets. This thread formation regime has the potential to decouple the droplet size from the device lengthscales and provides a mechanism to form sub-micron droplets. Here, we present results demonstrating the impact of viscosity ratio on the phenomenon.

Original languageEnglish (US)
Title of host publicationThe XVth International Congress on Rheology - The Society of Rheology 80th Annual Meeting
Pages994-996
Number of pages3
DOIs
StatePublished - 2008
Externally publishedYes
Event15th International Congress on Rheology - Monterey, CA, United States
Duration: Aug 3 2008Aug 8 2008

Publication series

NameAIP Conference Proceedings
Volume1027
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other15th International Congress on Rheology
Country/TerritoryUnited States
CityMonterey, CA
Period8/3/088/8/08

Keywords

  • Droplet formation
  • Microfluidic
  • Tipstreaming

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