Results 51 to 60 of about 1,633 (176)

Impact of noise on domain growth in electroconvection [PDF]

, 2005
The growth and ordering of striped domains has recently received renewed attention due in part to experimental studies in diblock copolymers and electroconvection.
E. Bodenschatz, I. Rehberg, Mary Griffith, Michael Dennin, P. G. de Gennes, T. Taneike   +5 more
core   +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

Micromachines, 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, Yukun Ren, Ye Tao, Hui Yan, Congda Xiao, Qisheng Wu   +5 more
doaj   +1 more source

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

Angewandte 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, Jonas Bartsch, Ingo Krossing   +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

Membranes, 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, Anna Kovalenko, Makhamet Urtenov, Victor Nikonenko   +3 more
doaj   +1 more source

Confinement effects on electroconvective instability

ELECTROPHORESIS, 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, Karen M, Wang, Jarrod, Schiffbauer, Ali, Mani   +3 more
openaire   +3 more sources

Electroconvection in a Viscoelastic Electrolyte

Physical 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, Lynden A, Archer, Donald L, Koch   +2 more
openaire   +3 more sources

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

Mathematics
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, Natalia Chubyr, Anna Kovalenko, Mahamet Urtenov   +3 more
doaj   +1 more source

Bifurcations in annular electroconvection with an imposed shear

, 2001
We report an experimental study of the primary bifurcation in electrically-driven convection in a freely suspended film. A weakly conducting, submicron thick smectic liquid crystal film was supported by concentric circular electrodes. It electroconvected
A. A. Sonin, A. Alonso, A. Becker, A. Buka, A. C. Newell, A. J. Leadbetter, A. Nemcsics, A. T. Pérez, C. Langer, D. A. Dunmur, D. Avsec, D. C. Jolly, D. Dash, E. B. Sirota, E. Knobloch, F. H. Busse, F. Zhong, F. Zhong, G. Wyszecki, H. F. Goldstein, H. F. Goldstein, H. W. Muller, J. R. Melcher, K. Fujimura, L. E. Scales, M. C. Cross, N. Agrait, N. J. Felici, P. G. Drazin, R. Ecke, R. G. Horn, S. Barret, S. Faetti, S. Ried, S. S. Mao, S. S. Mao, S. W. Morris, S. W. Morris, S. W. Morris, Stephen W. Morris, V. B. Deyirmenjian, Vatche B. Deyirmenjian, W. H. Pess, W. V. R. Malkus, X-l. Wu, Y. Couder, Z. A. Daya, Z. A. Daya, Z. A. Daya, Zahir A. Daya   +49 more
core   +1 more source

Amplitude Modulation and Relaxation-Oscillation of Counterpropagating Rolls within a Broken-Symmetry Laser-Induced Electroconvection Strip

, 2006
We report a liquid-crystal pattern-formation experiment in which we break the lateral (translational) symmetry of a nematic medium with a laser-induced thermal gradient.
D. Diguet, Daniel R. Spiegel, E. Bodenschatz, Elliot R. Johnson, G. Ahlers, J. P. Gollub, L. Kramer, S. H. Strogatz, S. Rasenat, Skyler R. Saucedo, W. van Saarloos   +10 more
core   +1 more source

Modal and nonmodal stability analysis of electrohydrodynamic flow with and without cross-flow [PDF]

, 2015
We report the results of a complete modal and nonmodal linear stability analysis of the electrohydrodynamic flow (EHD) for the problem of electroconvection in the strong injection region.
Atten, Atten, Atten, Boyd, Fulvio Martinelli, Félici, Jian Wu, Maurizio Quadrio, Melcher, Mengqi Zhang, Peter J. Schmid, Schmid   +11 more
core   +2 more sources