Electroosmotic Velocity in Fibrous Porous Media
β Scribed by Hiroyuki Ohshima
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 77 KB
- Volume
- 210
- Category
- Article
- ISSN
- 0021-9797
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β¦ Synopsis
A theory of electroosmosis in an array of parallel cylindrical fibers of Kozak and Davis (J. Colloid Interface Sci., 112, 403 (1986)), in which the liquid flow is normal to the axes of the cylinders, is developed to derive a simple approximate expression for the electroosmotic velocity for low zeta potentials without involving numerical integration. The relative error is less than 6%.
π SIMILAR VOLUMES
Almtraet--Using a cell model to describe a fibrous porous medium theoretical expressions are deduced relating effective gas diffusivity to the volume fraction of the fibres. Cylindrical as well as band-shaped fibres are studied. The new models, which are based on solutions to the diffusion equation,