Document Type : Research Article
Authors
1
Department of Mechanical Engineering, University of Isfahan, Isfahan, Iran
2
Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran
Abstract
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.
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