神田 健介

A novel concept of micromixer proposed in this study provides complex perturbation in a micromixer chamber. The chamber wall has meta-structure, which has multiple local masses on the chamber wall. Oscillation is applied to the metastructure with modulating frequency, resulting on local resonance oscillation. Measured amplitude mapping of the vibration corresponded to harmonic responses obtained from finite-element-analyses. This complex structural oscillation produces high mixing efficiency. Using this technique produced a mixing index of 0.92 with the volumetric flowrate of 1 μL/min, while it was 0.49 for a conventional technique.