Electroosmotic Mixing of Non-Newtonian Fluid in a Microchannel with Obstacles and Zeta Potential Heterogeneity

This paper investigates the electroosmotic micromixing of non-Newtonian fluid in a microchannel with wall-mounted obstacles and surface potential heterogeneity on obstacle surface. In numerical simulation, full model consisting Navier–Stokes equations Poisson–Nernst–Plank are solved for field, ion transport, electric power law is used to characterize rheological behavior aqueous solution. The mixing performance investigated under different parameters, such as double layer thickness, flow index, zeta potential, dimension. Due at surface, vortical formed near which can significantly improve efficiency. results show that, efficiency be improved by increasing height, EDL thickness.