%0 Journal Article
%T Analytical Study of the Electroosmotic Flow of Two Immiscible Power-Law Fluids in a Microchannel
%A Shuyan Deng
%J Open Journal of Fluid Dynamics
%P 263-276
%@ 2165-3860
%D 2022
%I Scientific Research Publishing
%R 10.4236/ojfd.2022.123013
%X The multilayer microchannel flow is a promising tool in microchannel-based systems such as hybrid microfluidics. To assist in the efficient design of two-liquid pumping system, a two-fluid electroosmotic flow of immiscible power-law fluids through a microtube is studied with consideration of zeta potential difference near the two-liquid interface. The modified Cauchy momentum equation in cylindrical coordinate governing the two-liquid velocity distributions is solved where both peripheral and inner liquids are represented by power-law model. The two-fluid velocity distribution under the combined interaction of power-law rheological effect and circular wall effect is evaluated at different viscosities and different electroosmotic characters of inner and peripheral power-law fluids. The velocity of inner flow is a function of the viscosities, electric properties and electroosmotic characters of two power-law fluids, while the peripheral flow is majorly influenced by the viscosity, electric property and electroosmotic characters of peripheral fluid. Irrespective of the configuration manner of power-law fluids, the shear thinning fluid is more sensitive to the change of other parameters.
%K Two-Liquid Electroosmotic Flow
%K Non-Newtonian Fluids
%K Circular Wall  Effect
%K Electrokinetic Width
%K Flow Behavior Index
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=119673