2.2 Passive Micromixers
21
were fabricated using machining processes in a poly-methyl methacrylate (PMMA)
sheet (Lucite CP, ICI Acrylics Inc, Cordova TN) with a Techno-isel CNC router
(Techno, Inc., New Hyde Park, NY). The vortices were first seen at Reynolds numbers
between 1 and 10, and became stronger as the flow velocity increased. Higher aspect
ratio (depth/width) channels also showed improved mixing performance. Figure 2.10
shows images of the outlet end of the channel at different Reynolds numbers. At Re
Fig. 2.10 Images of the
outlet end of the curved
channel at different Reynolds
numbers. Channel
dimensions are 1.27 mm by
1.27 mm. Radius of
curvature is 5 mm. All flows
are at steady state [36]
21
were fabricated using machining processes in a poly-methyl methacrylate (PMMA)
sheet (Lucite CP, ICI Acrylics Inc, Cordova TN) with a Techno-isel CNC router
(Techno, Inc., New Hyde Park, NY). The vortices were first seen at Reynolds numbers
between 1 and 10, and became stronger as the flow velocity increased. Higher aspect
ratio (depth/width) channels also showed improved mixing performance. Figure 2.10
shows images of the outlet end of the channel at different Reynolds numbers. At Re
Fig. 2.10 Images of the
outlet end of the curved
channel at different Reynolds
numbers. Channel
dimensions are 1.27 mm by
1.27 mm. Radius of
curvature is 5 mm. All flows
are at steady state [36]