Electrorotation of a viscous droplet in a uniform direct current electric field

Hui He*, Paul F. Salipante, Petia M. Vlahovska

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

We present a small-deformation theory which explains the experimentally observed nonaxisymmetric droplet deformation and orientation in a uniform DC electric field. The model shows that above a threshold electric field a rotational flow is induced about the droplet. As a result, drop shape becomes a general ellipsoid with major axis obliquely oriented to the applied field direction. The theory is in excellent agreement with the experimental data for high viscosity drops.

Original languageEnglish (US)
Article number032106
JournalPhysics of Fluids
Volume25
Issue number3
DOIs
StatePublished - Mar 19 2013

ASJC Scopus subject areas

  • Condensed Matter Physics

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