@Article{CiCP-22-4,
author = {},
title = {Electrophoresis of a Cylinder in a Cylindrical Tube},
journal = {Communications in Computational Physics},
year = {2017},
volume = {22},
number = {4},
pages = {1101--1122},
abstract = {<p style="text-align: justify;">Electrophoresis of a cylinder suspended in a cylindrical tube is analytically
studied in the limit of thin electric double layer approximation. The electric and fluid
flow fields within the annulus, and the cylinder velocities are analytically obtained in
bipolar coordinates. The results are analyzed with various values of dimensionless parameters:
eccentricity, cylinder-to-tube radius ratio and tube-to-cylinder zeta potential
ratio (i.e., tube-to-cylinder velocity scale ratio). The analysis shows that microvortices
are generated within the annulus. By changing the parameters, different flow patterns
can be created, which shows potential for mixing enhancement in micro/nanofluidics.
Moreover, the cylinder not only translates but also rotates when the cylinder and tube
are eccentric. The cylinder rotation might be utilized as a micromotor or an electric
field detector. The cylinder trajectories show that the cylinder may approach the tube
wall or rest within the tube depending on the zeta potential ratio.</p>},
issn = {1991-7120},
doi = {https://doi.org/10.4208/cicp.OA-2017-0011},
url = {https://global-sci.com/article/80173/electrophoresis-of-a-cylinder-in-a-cylindrical-tube}
}