  We propose an efficient simulation algorithm based on the dissipative
particle dynamics (DPD) method for studying electrohydrodynamic phenomena in
electrolyte fluids. The fluid flow is mimicked with DPD particles while the
evolution of the concentration of the ionic species is described using Brownian
pseudo particles. The method is designed especially for systems with high salt
concentrations, as explicit treatment of the salt ions becomes computationally
expensive. For illustration, we apply the method to electro-osmotic flow over
patterned, superhydrophobic surfaces. The results are in good agreement with
recent theoretical predictions.
