Performance investigation of MHD micro-mixers with different pumping capabilities for two different miscible fluids

In this study, a magnetohydrodynamic (MHD) micro-mixer with differential pumping capabilities for two different miscible fluids is newly proposed and numerically investigated. Lorentz-force can be created with different potentials applied to different electrodes, producing a differential pumping for the two fluids, and inducing a cross-sectional fluid circulation for mixing. The results show that the micro-mixer proposed can achieve high mixing performance for electrolytes. Here, the effect of the ratio of the potential difference in pumping section on the ratio of the mass flow rate of the two fluids is obtained in the form of an exponential function.