Author : Sanjay A. Pawar and Dr. Vimal Kumar Chouksey

The paper explores the development of micromixers for lab-on-chip applications through the stages of design, simulation, fabrication, and analysis. The primary focus is on achieving optimal mixing efficiency and film bonding stability at low Reynolds numbers, while minimizing pressure drop using cost-effective polymer microfluidic devices. Specifically, the impact of structural dimensions on mixing behavior is investigated in Split and Recombine Micro Channel using circular, square, and diamond-shaped obstacles at various Reynolds numbers ranging from 0.1 to 60. Mixing efficiency of the circular obstacle-based SAR micromixer is found to be better at a very short length without damaging the thin film bonding layer at Re 45.

Keywords: Micromixtures, Microfluidics, Micro channel, Split and Recombine Micro Channel