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Mostrando ítems 11-20 de 28
Artículo
Electric force between a dielectric sphere and a dielectric plane
(Elsevier, 2021)
We compute the electric force between a dielectric sphere and a dielectric plane in the presence of an external electric field. Laplace's equation is solved in bispherical coordinates and Maxwell's stress tensor is used ...
Artículo
Instability of an interface between air and a low conducting liquid subjected to charge injection
(American Institute of Physics, 2006)
We study the linear stability of an interface between air and a low conducting liquid in the presence of unipolar injection of charge. As a consequence of charge injection, a volume charge density builds up in the air gap ...
Artículo
Numerical evaluation of heat transfer enhancement due to annular electroconvection induced by injection in a dielectric liquid
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Two-dimensional numerical simulations are carried out to evaluate the enhancement of natural convection heat transfer in a dielectric liquid resulting from injection induced annular electro-convection. The liquid is ...
Artículo
Modeling the electrophoretic deposition of colloidal particles
(IOP Publishing Ltd., 2001)
This letter presents the results of numerical simulations of the buildup of a layer of colloidal particles on an electrode. In a low-frequency electric field, particles suspended in a low-conductivity liquid migrate to one ...
Artículo
Numerical Analysis of Electrohydrodynamic Instability in Dielectric-liquid-gas Flows Subjected to Unipolar Injection
(American Physical Society, 2021)
In this work, the electrohydrodynamic instability induced by a unipolar charge injection is extended from a single-phase dielectric liquid to a two-phase system that consists of a liquid-air interface. A volume-of-fluid ...
Artículo
The charged bouncing ball: An experimental model for period-doubling bifurcation
(IOP Publishing Ltd., 1997-03-10)
This paper presents an experimental and theoretical study of the dynamics of a conducting ball in a poorly conducting liquid subjected to an electric field. When the applied voltage is constant the ball bounces regularly ...
Artículo
An automated apparatus for measuring the tensile strength and compressibility of fine cohesive powders
(American Institute of Physics, 2000)
This paper describes an apparatus based on a novel use of a powder bed, whereby the relationship between consolidation stress, tensile strength, and free volume of fine powder is measured. The powder to be tested is first ...
Artículo
Onset of convection in a finite two-dimensional container due to unipolar injection of ions
(American Physical Society, 2013)
This work addresses the stability of a two-dimensional plane layer of a dielectric liquid enclosed in wall bounded cavities of different aspect ratios and subjected to unipolar injection of ions. Numerical simulations have ...
Artículo
Dynamics of EHD Laminar Plumes: scaling analysis and integral model
(AIP Publishing, 2000)
In this paper electrohydrodynamic (EHD) plumes are examined in the region far from the injecting electrode and the collector plate, for both two-dimensional and axisymmetric geometries. The relative importance of the ...
Artículo
Flow Regimes in Fine Cohesive Powders
(American Physical Society, 1999)
Granular materials exhibit several regimes of behavior: plastic, inertial, fluidized, and entrained flow, but not all materials can pass through all of these states. Our concern is with the criteria that determine the ...