Mechanism of development of the instability of a liquid drop in an electric field

1986 ◽  
Vol 20 (6) ◽  
pp. 841-846 ◽  
Author(s):  
A. I. Grigor'ev ◽  
O. A. Sinkevich
Keyword(s):  
Electric Field ◽  
Liquid Drop

Quiescent distortion and resonant oscillations of a liquid drop in an electric field

1970 ◽  
Vol 8 (1) ◽  
pp. 97-109 ◽  
Author(s):  
Steven B. Sample ◽  
Bollini Raghupathy ◽  
Charles D. Hendricks
Keyword(s):  
Electric Field ◽  
Liquid Drop

Deformation of metallic liquid drop by electric field for contacts in molecular–organic electronics

2009 ◽  
Vol 465 (2106) ◽  
pp. 1799-1808 ◽  
Author(s):  
M. Bag ◽  
D. Gupta ◽  
N. Arun ◽  
K.S. Narayan
Keyword(s):  
Solid State ◽  
Surface Energy ◽  
Electric Field ◽  
Linear Response ◽  
Liquid Drop ◽  
Electrostatic Energy ◽  
Critical Voltage ◽  
Metallic Liquid ◽  
Linear Response Regime ◽  
Polymer Electronics

We study and use the behaviour of a metallic liquid drop in the presence of an external electric field (EF). The droplet profile is governed by the stabilizing surface energy and the destabilizing electrostatic energy, with a critical voltage beyond which the droplet becomes unstable. We explore the EF-induced behaviour of low melting temperature alloy in the liquid state and observe that the droplet modifications in the linear response regime can be retained upon cooling the drop to the solid state. We demonstrate that this procedure can be used as an electrode with precise dimensions for applications in molecular and polymer electronics.

On fluid motions induced by an electromagnetic field in a liquid drop immersed in a conducting fluid

1972 ◽  
Vol 51 (3) ◽  
pp. 585-591 ◽  
Author(s):  
C. Sozou
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Flow Field ◽  
Electric Field ◽  
Lorentz Force ◽  
Liquid Drop ◽  
Conducting Fluid ◽  
Uniform Electric Field ◽  
Tangential Electric Field ◽  
Set Up

The deformation of a liquid drop immersed in a conducting fluid by the imposition of a uniform electric field is investigated. The flow field set up is due to the surface charge and the tangential electric field stress over the surface of the drop, and the rotationality of the Lorentz force which is set up by the electric current and the associated magnetic field. It is shown that when the fluids are poor conductors and good dielectrics the effects of the Lorentz force are minimal and the flow field is due to the stresses of the electric field tangential to the surface of the drop, in agreement with other authors. When, however, the fluids are highly conducting and poor dielectrics the effects of the Lorentz force may be predominant, especially for larger drops.

Dielectric liquid drop in a harmonic electric field

2016 ◽  
Vol 51 (2) ◽  
pp. 224-239 ◽  
Author(s):  
D. I. Kvasov
Keyword(s):  
Electric Field ◽  
Liquid Drop ◽  
Dielectric Liquid

The deformation of a liquid drop by an electric field

1987 ◽  
Vol 38 (3) ◽  
pp. 424-432 ◽  
Author(s):  
N. Dodgson ◽  
C. Sozou
Keyword(s):  
Electric Field ◽  
Liquid Drop

On the shape of a rotating liquid drop in an electric field

1967 ◽  
Vol 4 (1) ◽  
pp. 107-114 ◽  
Author(s):  
Lui M. Habip ◽  
Julius Siekmann ◽  
Shih-Chih Chang
Keyword(s):  
Electric Field ◽  
Liquid Drop ◽  
Rotating Liquid

Electrohydrodynamics of a liquid drop: the time-dependent problem

1972 ◽  
Vol 331 (1585) ◽  
pp. 263-272 ◽  
Keyword(s):  
Flow Field ◽  
Electric Field ◽  
Liquid Drop ◽  
Momentum Equation ◽  
Time Dependent ◽  
Fluid Density ◽  
Low Viscosity ◽  
Theoretical Paper ◽  
Time Dependent Problem ◽  
Set Up

This theoretical paper is an extension of Sir Geoffrey Taylor’s work on the flow field induced by an electric field in and about a liquid drop immersed in an incompressible conducting fluid. In the present work it is assumed that the inducing electric field varies with time t as cos ωt , where ω is a constant. The solution presented is based on the assumption that the flow field set up is weak and the convection terms in the momentum equation can be ignored. It is shown that for fluids of low viscosity or when the applied electric field is oscillating very rapidly the term ρδu/δt, where ρ and u are the fluid density and velocity, respectively, cannot be neglected. In these cases the results of the authors who have completely ignored this term are not correct.

scholarly journals Highlighting the Role of Dielectric Thickness and Surface Topography on Electrospreading Dynamics

Micromachines ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 93 ◽  
Author(s):  
Nikolaos Chamakos ◽  
Dionysios Sema ◽  
Athanasios Papathanasiou
Keyword(s):  
Electric Field ◽  
Surface Topography ◽  
Solid Surface ◽  
Electric Field Distribution ◽  
Liquid Drop ◽  
Solid Substrate ◽  
Dielectric Thickness ◽  
Fundamental Interest ◽  
Spreading Dynamics

The electrospreading behavior of a liquid drop on a solid surface is of fundamental interest in many technological processes. Here we study the effect of the solid topography as well as the dielectric thickness on the dynamics of electrostatically-induced spreading by performing experiments and simulations. In particular, we use an efficient continuum-level modeling approach which accounts for the solid substrate and the electric field distribution coupled with the liquid interfacial shape. Although spreading dynamics depend on the solid surface topography, when voltage is applied electrospreading is independent of the geometric details of the substrate but highly depends on the solid dielectric thickness. In particular, electrospreading dynamics are accelerated with thicker dielectrics. The latter comes to be added to our recent work by Kavousanakis et al., Langmuir, 2018, which also highlights the key role of the dielectric thickness on electrowetting-related phenomena.

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