A note on the electrophoresis of a uniformly charged particle - École polytechnique Accéder directement au contenu
Article Dans Une Revue Quarterly Journal of Mechanics and Applied Mathematics Année : 2002

A note on the electrophoresis of a uniformly charged particle

Résumé

We examine the electrophoretic motion of a uniformly charged particle embedded in a varying electric field E8. If R and ?-1 respectively denote the typical radius of curvature of the particle's surface and the usual Debye-Htickel screening length we assume that R " ?-1 and allow variations of E8 over lengths of order at least R. Under these assumptions, this paper shows that it is unnecessary to calculate the total electric field in the electrolyte when determining the rigid-body motion of the particle. The well-known Smoluchowski solution is thereafter readily recovered. Finally, we pay special attention to orthotropic and uniformly charged particles and detail the case of a solid ellipsoid.

Dates et versions

hal-01024928 , version 1 (17-07-2014)

Identifiants

Citer

Alain Sellier. A note on the electrophoresis of a uniformly charged particle. Quarterly Journal of Mechanics and Applied Mathematics, 2002, 55 (4), pp.561-572. ⟨10.1093/qjmam/55.4.561⟩. ⟨hal-01024928⟩
30 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More