Results 51 to 60 of about 1,643 (178)

Electro-Thermo-Convection of a Dielectric Liquid in the External DC and AC Electric Fields

open access: yesMathematics, 2023
The electro-thermo-convection of a dielectric liquid in a horizontal capacitor is investigated under the autonomous charge injection from the cathode and heating from above. In the case of a DC electric field, the linear stability analysis is carried out,
Oleg Nekrasov, Boris Smorodin
doaj   +1 more source

Buoyancy-Free Janus Microcylinders as Mobile Microelectrode Arrays for Continuous Microfluidic Biomolecule Collection within a Wide Frequency Range: A Numerical Simulation Study

open access: yesMicromachines, 2020
We numerically study herein the AC electrokinetic motion of Janus mobile microelectrode (ME) arrays in electrolyte solution in a wide field frequency, which holds great potential for biomedical applications.
Weiyu Liu   +5 more
doaj   +1 more source

Reaction Mechanisms of High‐Rate Copper Electrochemical Machining in Nitrate Electrolytes

open access: yesAngewandte Chemie, Volume 136, Issue 45, November 4, 2024.
The dissolution mechanism of copper during high‐rate electrochemical machining in nitrate electrolyte is investigated and proposed to change to overcome mass transport limitation. Prerequisites are derived from polarization measurements under various (hydrodynamic) conditions.
Leonie Jakob   +2 more
wiley   +2 more sources

1D Mathematical Modelling of Non-Stationary Ion Transfer in the Diffusion Layer Adjacent to an Ion-Exchange Membrane in Galvanostatic Mode

open access: yesMembranes, 2018
The use of the Nernst–Planck and Poisson (NPP) equations allows computation of the space charge density near solution/electrode or solution/ion-exchange membrane interface.
Aminat Uzdenova   +3 more
doaj   +1 more source

Confinement effects on electroconvective instability

open access: yesELECTROPHORESIS, 2016
We present an analysis of hydrodynamic effects in systems involving ion transport from an aqueous electrolyte to an ion‐selective surface. These systems are described by the Poisson–Nernst–Planck and Navier–Stokes equations. Historically, such systems were modeled by one‐dimensional geometries with spatial coordinate in the direction of transport and ...
Mathias B, Andersen   +3 more
openaire   +3 more sources

Electroconvection in a Viscoelastic Electrolyte

open access: yesPhysical Review Letters, 2019
Direct numerical simulations of a liquid electrolyte with polymer additives demonstrate that viscoelasticity promotes an earlier transition from steady to unsteady electroconvective flow. Viscoelasticity also decreases the overlimiting current resulting from convection by up to 40%.
Gaojin, Li   +2 more
openaire   +3 more sources

Numerical Study of Salt Ion Transport in Electromembrane Systems with Ion-Exchange Membranes Having Geometrically Structured Surfaces

open access: yesMathematics
This article is devoted to numerically modeling the effect of the geometric modification of the surfaces of ion-exchange membranes in electromembrane systems (EMSs) on the salt ion transport using a 2D mathematical model of the transport process in the ...
Evgenia Kirillova   +3 more
doaj   +1 more source

Fluctuation and Dissipation in Liquid-Crystal Electroconvection [PDF]

open access: yesPhysical Review Letters, 2001
Physical Review ...
Goldburg, W. I.   +2 more
openaire   +5 more sources

Dislocation Dynamics in an Anisotropic Stripe Pattern

open access: yes, 2004
The dynamics of dislocations confined to grain boundaries in a striped system are studied using electroconvection in the nematic liquid crystal N4. In electroconvection, a striped pattern of convection rolls forms for sufficiently high driving voltages ...
A. J. Bray   +8 more
core   +1 more source

Numerical evaluation of heat transfer enhancement due to annular electroconvection induced by injection in a dielectric liquid [PDF]

open access: yes, 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.
Louste, Christophe   +4 more
core   +3 more sources

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