Numerical Analysis on An Electroosmotic Micromixer with Hexagonal Mixing Structure

초록

Achieving homogeneous and rapid mixing in microfluidic systems remains a major challenge due to the inherently low Reynolds number in microchannel flows. This paper presents a novel electroosmotic micromixer incorporating a hexagonal mixing chamber. The hexagonal structure induces electroosmotic flow that generates strong internal perturbations, effectively folding and stretching fluid streams to enhance mixing. Numerical simulations based on the finite element method demonstrate that the mixing efficiency strongly depends on the low electric potential and flow rate. The results confirm that our proposed micromixer can achieve high mixing performance under relatively low voltage conditions, offering a promising design for lab-on-a-chip applications.

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