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Updated: Jul 10, 2026

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions
Published on: September 7, 2018
Physicochemical influences on electrohydrodynamic transport in compressible packed beds of colloidal boehmite
Bastian Schäfer1, Hermann Nirschl
1Institut für Mechanische Verfahrenstechnik und Mechanik, Universität Karlsruhe (TH), 76131 Karlsruhe, Germany. bastian.schaefer@mvm.uka.de
Abstract:
Production and processing of colloidal particles require a deeper understanding of the surface charge of particles and the interaction of mass and charge transport in packed beds. The assessment of fundamental parameters is rather complex due to the additional influence of the particle charge on the structure of a packed bed. The combination of different measurement techniques (streaming potential and electroosmosis) allows for separating the effects, based on the postulation of a new method to quantify the ratio of surface conductance to liquid conductance. The purpose of this paper is to investigate the influence of pH value and compression on the electrohydrodynamic transport parameters.
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