This study investigates the flow characteristics of electroosmotic flow in a
microchannel with complex wavy surfaces. A general method of coordinate
transformation is used to solve the governing equations describing the
electroosmotic flow in the microchannel. Numerical simulations are performed
to analyze the effects of wave amplitude on the electrical field, flow
streamlines, and flow fields in the microchannel. The simulation results show
that, compared to a traditional pressure-driven flow, flow recirculation is
not developed in the electroosmotic flow in a microchannel with complex wavy
surfaces. The simulations also show that the electrical field and velocity
profiles change along the channel in the region of wavy surfaces. Non-flat
velocity profiles are observed in different cross-sections of the channel in
the region of wavy surfaces.
A numerical investigation into electroosmotic flow in microchannels with complex wavy surfaces
