Experimental measurement of electrical conductivity and electro-osmotic permeability of ionised porous media

J.M.R.J. Huyghe, C.F. Janssen, Y. Lanir, C.C. Donkelaar, van, A. Maroudas, D.H. Campen, van

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

Abstract

Fine grained porous media typically exhibit non-Darcian behaviour. One of them is electro-osmotic flow. The present paper presents an electro-osmotic flow experiment on hydrogel samples. The electric current density is prescribed. The electric potential drop across the sample and the volume flow through the sample are measured. The results show a linear relationship between potential and current and between flow and current. As diffusional properties are highly dependent on deformation, these linear relationships in a highly deformable medium, support the theoretical finding that viscous drag is annihilated by opposite electrical forces in an electroosmotic flow experiment.
Original languageEnglish
Title of host publicationPorous media : theory, experiments, and numerical applications
EditorsW. Ehlers, J. Bluhm
Place of PublicationBerlin
PublisherSpringer
Pages295-313
ISBN (Print)3-540-43763-0
DOIs
Publication statusPublished - 2002

Publication series

NameEngineering online library

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