Back to Search
Start Over
Electric field induced sheeting and breakup of dielectric liquid jets.
- Source :
-
Physics of Fluids . Jan2014, Vol. 26 Issue 1, p1-10. 10p. 2 Black and White Photographs, 1 Diagram, 4 Graphs. - Publication Year :
- 2014
-
Abstract
- We report experimental observations of the controlled deformation of a dielectric liquid jet subjected to a local high-voltage electrostatic field in the direction normal to the jet. The jet deforms to the shape of an elliptic cylinder upon application of a normal electrostatic field. As the applied electric field strength is increased, the elliptic cylindrical jet deforms permanently into a flat sheet, and eventually breaksup into droplets. We interpret this observation--the stretch of the jet is in the normal direction to the applied electric field--qualitatively using the Taylor-Melcher leaky dielectric theory, and develop a simple scaling model that predicts the critical electric field strength for the jet-to-sheet transition. Our model shows a good agreement with experimental results, and has a form that is consistent with the classical drop deformation criterion in the Taylor-Melcher theory. Finally, we statistically analyze the resultant droplets from sheet breakup, and find that increasing the applied electric field strength improves droplet uniformity and reduces droplet size. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10706631
- Volume :
- 26
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Physics of Fluids
- Publication Type :
- Academic Journal
- Accession number :
- 94315387
- Full Text :
- https://doi.org/10.1063/1.4848615