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Updated: Jun 22, 2026

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions
Published on: September 7, 2018
Mesoscopic simulations of the counterion-induced electro-osmotic flow: a comparative study
Jens Smiatek1, Marcello Sega, Christian Holm
1Physics Faculty, Universitat Bielefeld, D-33615 Bielefeld, Germany. smiatek@physik.uni-bielefeld.de
Abstract:
We present mesoscopic simulations of the counterion-induced electro-osmotic flow in different electrostatic coupling regimes. Two simulation methods are compared, dissipative particle dynamics (DPD) and coupled lattice-Boltzmann/molecular dynamics (LB/MD). A general mapping scheme to match DPD to LB/MD is developed. For the weak coupling regime, analytic expressions for the flow profiles in the presence of partial-slip as well as no-slip boundary conditions are derived from the Poisson-Boltzmann and Stokes equations, which are in good agreement with the numerical results. The influence of electrofriction and partial slip on the flow profiles is discussed.
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