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. 2016 Apr 13;10(2):024124. doi: 10.1063/1.4946875

FIG. 3.

FIG. 3.

(a) Experimentally and (b) numerically observed trajectories of 1.9 μm diameter fluorescent beads in a typical sharp-edge-based micromixer exhibiting a laminar flow profile in the absence of acoustic actuation. Upon acoustic actuation, the oscillating sharp-edges disturb the laminar flow, resulting in micro vortices near the sharp-edge tips, as observed (c) experimentally and (d) numerically from the trajectories of 1.9 μm diameter fluorescent beads. The scale bars in the experimental figures represent 250 μm.