Numerical simulation of two-fluid electroosmotic flow in microchannels

This paper presents a numerical scheme for stratified two-liquid electroosmotic flows. The simulation results highlight that using the electroosmotic effects can control the interface location of a pressure-driven two-liquid flow. A finite volume method is used to solve the coupled electric potential equation and Navier–Stokes equation together.The validity of the numerical scheme is evaluated by comparing its predictions with the results of the analytical solutions in the fully developed regions. The liquid–liquid interface developments due to the favorably and adversely applied electric field are examined.