Noncontact rebound and fission of oppositely charged droplets

Noncontact rebound and fission of oppositely charged droplets Oppositely charged droplets rebound and break up under high enough electrical fields before they contact each other. By using high-speed microscopy, we present a detailed experimental study of the noncontact bouncing and breakup process of oppositely charged droplets for liquids of different conductivities. Under different applied voltages, the breakup morphology of oppositely charged droplets with various ion concentrations has been accurately captured, and an image-processing technology was used to analyze the effect of several parameters on the breakup process. The breakup structures based on ion concentrations were measured to build up their relationship to study the dynamic behavior of oppositely charged droplets. For poorly conducting or nonconducting liquids, no breakup behavior was observed regardless of the applied voltage. However, various breakup structures are detected as the applied voltage increases for high-conductivity liquids. The behavior of bouncing without breakup is caused by air discharge, which is achieved prior to the ion concentration on the droplet tip reaching the Rayleigh charge limit. The behavior of bouncing with breakup is a form of Coulomb fission, which means that the surface charge on the droplet tip reaches the Rayleigh charge limit prior to air discharge. The fitting curves are given to demarcate bouncing and breakup behaviors. Droplets with high conductivity exhibit the maximum change in breakup volume, indicating that high-conductivity liquids are more sensitive to changes in electric field strength. Experiments in Fluids Springer Journals

Noncontact rebound and fission of oppositely charged droplets

Loading next page...
Springer Berlin Heidelberg
Copyright © 2015 by Springer-Verlag Berlin Heidelberg
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
Publisher site
See Article on Publisher Site


You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.



billed annually
Start Free Trial

14-day Free Trial