Shahrekord University Journal of Microfluidic and Nanofluidic Research 2 1 2025 03 01 Effect of Inlet Velocity and Voltage on the Mixing Performance of an Electroosmotic Device 60 64 11807 10.22034/jmnr.2025.15166.1008 EN Narges Jafari Ghahfarokhi Department of Mechanical Engineering, University of Isfahan, Isfahan, Iran Ahmad Najafpour Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran Journal Article Electroosmotic micromixers are utilized in microfluidic systems, especially in biochemical studies. This article examines an asymmetric electroosmotic micromixer to ascertain the effects of applied voltage and inlet velocity (Uin) on mixing index (MI) and pressure drop (Δp). It is shown that without altering Δp, the applied voltage greatly increases MI. For instance, when Uin= 0.2 mm/s, increasing the applied voltage from 0 to 1, 3, and 6 V improves MI by 2.31%, 2.53%, and 5.47%, respectively. MI is improved by 2.76%, 3.66%, and 8.38%, respectively, when the applied voltage is increased from 0 to 1, 3, and 6 V with Uin= 0.4 mm/s. MI is improved by 2.86%, 5.08%, and 11.81%, respectively, when the applied voltage is increased from 0 to 1, 3, and 6 V when Uin= 0.6 mm/s. MI is improved by 3.97%, 6%, and 13.22%, respectively, when the applied voltage is increased from 0 to 1, 3, and 6 V with Uin= 0.8 mm/s. For a given applied voltage, it is seen that Δp increases slightly when the inlet velocity is raised; also, Δp is an increasing function of the applied voltage for a given inlet velocity, despite the little increase. https://jmnr.sku.ac.ir/article_11807_13c86fac19a52dbc843105b709dc71fc.pdf