Electrohydrodynamic interaction of a pair of spherical drops

J. A. Erker, J. C. Baygents

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


The axisymmetric electrohydrodynamic interaction between two spherical emulsion drops has been examined, using the leaky dielectric model to represent the constitutive behavior of the liquid phases. The results follow from the general solutions in bispherical coordinates to the Laplace equation for the electric potential and the Stokes equations for the velocity field. For drops of similar composition, the electrical interactions induced between the drops by the imposition of the electric field are always attractive, meaning they favor coalescence of the drop pair. The hydrodynamic interactions, however, are not always favorable and, indeed, are shown in certain circumstances to drive the drops apart.

Original languageEnglish (US)
Pages (from-to)731-736
Number of pages6
JournalNASA Conference Publication
Issue number3338
StatePublished - 1996
EventProceedings of the 1996 3rd Microgravity Fluid Physics Conference - Cleveland, OH, USA
Duration: Jul 13 1996Jul 15 1996

ASJC Scopus subject areas

  • Aerospace Engineering


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