Volume 24, Issue 7 (July 2024)                   Modares Mechanical Engineering 2024, 24(7): 411-420 | Back to browse issues page


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1- University of Tehran
2- University of Tehran , mbadiei@ut.ac.ir
Abstract:   (750 Views)
The emergence of microfluidic devices for various applications has created a demand for enhancing the efficiency of the mixing. In this article, an electroosmotic micromixer based on G-shaped electrodes that are excited by AC waveform was designed. The proposed micromixer was simulated using COMSOL Multiphysics and the effects of various parameters including voltage, frequency, distance between electrodes, and the number of electrodes on the mixing efficiency have been characterized. By compiling the obtained results, the performance of the optimized model with four electrodes each having a 6.5 µm distance between their opposite polarities, excited with voltage of 1 V and frequency of 16 Hz was evaluated. The results demonstrated that the proposed micromixer was able to achieve a mixing efficiency of over 99.7% with a response time of 220 ms. Furthermore, the proposed device was designed regarding practical consideration, enabling the micromixer to be fabricated without the need of sophisticated instruments.
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Article Type: Original Research | Subject: Experimental Fluid Mechanics
Received: 2024/05/6 | Accepted: 2024/09/25 | Published: 2024/06/30

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