Title :
Elongation of water drops in oil during transient electric fields
Author :
Berg, G. ; Lundgaard, L. ; Hansen, F.K.
Author_Institution :
SINTEF, Trondheim, Norway
Abstract :
A water drop will elongate in an electric field due to the electrostatic pressure. From the drop deformation it is possible to derive the surface tension of the water drop. We have developed a method to study the rheological properties of a water droplet suspended in oil. By applying different voltage waveforms we can study transient and time varying effects, such as surface elasticity and time constants of adsorption of polar surfactants.
Keywords :
adsorption; deformation; drops; elasticity; elongation; oils; rheology; surface tension; surfactants; suspensions; water; adsorption; deformation; electrostatic pressure; elongation; oil; polar surfactants; rheological properties; surface elasticity; surface tension; transient electric fields; water drops; Elasticity; Electrostatics; Inductors; Petroleum industry; Rheology; Shape; Surface tension; Surface waves; Voltage; Water;
Conference_Titel :
Dielectric Liquids, 2005. ICDL 2005. 2005 IEEE International Conference on
Print_ISBN :
0-7803-8954-9
DOI :
10.1109/ICDL.2005.1490058
