Electrokinetic phenomena in fibrous porous media

摘要: Abstract This analysis of electroosmosis and electrophoresis associated with an array circular cylinders extends to fibrous porous systems Henry's theory (D. C. Henry, Proc. R. Soc. London Ser. A 133, 106, 1931) for the a single isolated sphere electrokinetic phenomena swarm spherical particles (S. Levine G. H. Neale, J. Colloid Interface Sci. 47, 520, 1974). The fluid flow is considered be normal axes cylinders. correction factor Smoluchowski's classic (M. Smoluchowski, Z. Phys. Chem. 93, 129, 1918) electrophoretic velocity obtained in terms porosity fiber matrix, electric double layer thickness, surface potential effects surrounding fibers. Analytical asymptotic expansions are developed, full solution examined determine system parameters on electroosmotic (or electrophoretic) velocity. For collapsed layers reduces result, expanded decreases significantly as decreases.