Numerical investigation on the performance of an electrokinetic-based micromixer Equipped with circular-shaped electrodes

Electroosmosis phenomena is drawing significant attention as a pumping and mixing means for use in microfluidic systems with the benefit of having simple structures and low-energy expenditure. An electroosmosis micromixer is a critical component inside microfluidic systems, which aims to efficiently mix the fluids at the microscale. These devices find applications across many scientific fields, including lab-on-chip devices, biomedical, medicine, etc. Electroosmosis can be described as fluid movement using micro/nano-channels due to an externally applied electric field. In the current work, an electroosmosis-driven micromixer has been designed that aims to mix two fluids. A sinusoidal electric potential is applied between the semi-circular electrodes, which has a peak value of ۰.۱ V with an operational frequency of ۸ hertz. Simulation results derived using this arrangement reveal that the micromixer exhibits an impressive mixing efficiency with a value around ۹۷%, thus indicating that the device has significant potential to be exploited for useful applications in an array of disciplines such as microfluidics, MEMS-based applications, and biomedical sciences.

کلیدواژه ها:

Microfluidic ، Lab-on-Chips ، Electroosmosis ، Electrokinetic micromixer ، MEMS