Detection of a dynamic cone-shaped meniscus on the surface of fluids in electric fields

Ezinwa O. Elele, Yueyang Shen, Donald R. Pettit, Boris Khusid

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A cone-shaped meniscus of electrified fluids, often called a Taylor cone, is observed in rain drops and lightning and employed in various physical instruments and experimental techniques, but the way it evolves from a rounded shape to a cone is a long-standing puzzle. Earth's gravity and microgravity measurements on the meniscus whose height is just shy of droplet ejection reveal that field-driven cusp evolution exhibits a universal self-similarity insensitive to the forcing field and scaled by the fluid surface tension and density. Our work paves the way for dynamic control of field-driven phenomena in fluids.

Original languageEnglish (US)
Article number054501
JournalPhysical Review Letters
Volume114
Issue number5
DOIs
StatePublished - Feb 5 2015

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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