Electroosmosis through a Cation-Exchange Membrane: Effect of an ac Perturbation on the Electroosmotic Flow

Effect of an ac Perturbation on the Electroosmotic Behavior of a Cation-Exchange Membrane. Influence of the Cation Nature

“…In this case, together with the electrodes used to inject the current, other Ag/AgCl electrodes were introduced in each chamber to measure the dc voltage. These electrodes consisted of two linear Ag wires of approximately 4-mm longitude and 1-mm diameter and they were also prepared by the usual method (14).…”

Electroosmotic Flow in a Microcapillary with One Solution Displacing Another Solution

“…Then the equation of motion, Eq. [13] or Eq. [14], can be numerically solved with a guess value for the pressure gradient for one of the non-mixing-zone sections.…”

“…where D is the diffusion coefficient, the nondimensional equation of motion can be obtained for KCl solution, [13] and for LaCl 3 solution,…”

“…The capillary tube in this study has the following dimensions: L total = 10 cm and d = 10 −2 cm. Now we have the complete set of equations, Poisson-Boltzmann equations [6] and [7], motion equations [13] and [14], and concentration equation [18], plus the matching initial and boundary conditions.…”

Time periodic electroosmotic flow between oscillating boundaries in narrow confinements

“…Commonly termed as either 'ac electroosmosis' or 'time-periodic electroosmosis' [1,3,15,16,18,19,21] this phenomenon has attracted significant attention from the research community over the past few years, both from experimental as well as theoretical perspectives. One of the objectives of utilizing such pulsating flow actuation mechanisms in microfluidic systems has been to promote the mixing efficiency despite operating in a diffusion-controlled flow regime.…”