Abstract
The authors used the Split-and-Recombine (SAR) structure as an acceleration method of mixing and chemical reaction in the micro fluidic device. The number of layers of two reacting fluids by using this structure is increased. Then, the contact areas increase, the thicknesses of layer decrease, and the mixing and chemical reaction can accelerate. To evaluate of the mixing and chemical reaction by the SAR structure, the numerical calculation was performed. The SAR structure has many curved channel and the shape is important. An angled channel and the curved channel of two different shapes were compared numerically. As a result, the mixing efficiency was large in angled channel, because an effective secondary flow generated. The mixing efficiency of three SAR structures with angled channels (45 degrees) showed 7.5 times more than that of the straight channel of the same channel length.
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