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Microgravity - Science and Technology

, Volume 16, Issue 1–4, pp 153–157 | Cite as

A novel methodology to study shape and surface tension of drops in Electric Fields

  • A. Bateni
  • S. S. Susnar
  • A. Amirfazli
  • A. W. Neumann
Article

Abstract

A novel methodology is introduced that can be used to study the behavior of conducting drops in electrostatic fields, when gravity effects are negligible. This methodology, called Axisymmetric Drop Shape Analysis — Electric Field (ADSA-EF), generates numerical drop profiles in the electrostatic field, for a given surface tension. Then, it calculates the true value of the surface tension by matching the theoretical profiles with the shape of the experimental drops, with the surface tension as an adjustable parameter. ADSA-EF can be employed for simulating drop shapes in the electric field, detecting the effect of an electric field on liquid surface tensions, and measuring surface tensions in microgravity, where current drop-shape techniques are not applicable. The predicted drop shapes in the electric field were compared with experimental images, indicating good agreement. Preliminary experiments according to ADSA-EF methodology suggested that the surface tension of water increases by about one percent in the electric field.

Keywords

Surface Tension PMMA Electrostatic Field Drop Shape Drop Surface 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer 2005

Authors and Affiliations

  • A. Bateni
    • 1
  • S. S. Susnar
    • 1
  • A. Amirfazli
    • 2
  • A. W. Neumann
    • 1
  1. 1.Department of Mechanical and Industrial EngineeringUniversity of TorontoTorontoCanada
  2. 2.Department of Mechanical EngineeringUniversity of AlbertaEdmontonCanada

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