2.2 Passive Micromixers
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Fig. 2.14 A SAR micromixer [45]: a Schematic of SAR micromixer and corresponding crosssectional view of the flow, and b results of the mixing experiment involving blue dye and water
Fig. 2.15b. The proposed micromixers showed significantly improved mixing performance compared to a micromixer of the similar geometry based on the concept of
unbalanced splits and collisions in a wide range of Reynolds numbers. Also, the
pressure drop was acceptable for lab-on-a-chip and μ-TAS.
Sudarsan and Ugaz [50, 51] developed two different micromixers shown in
Fig. 2.16: (a) planar SAR (P-SAR) micromixer capable of generating alternating
lamellae of individual fluid species in a SAR arrangement, and (b) multi-vortex
micromixer based on coupled Dean and expansion vortices (arising out due to
abrupt change in cross-sectional area). Tafti et al. [52, 53] proposed an in-plane
25
Fig. 2.14 A SAR micromixer [45]: a Schematic of SAR micromixer and corresponding crosssectional view of the flow, and b results of the mixing experiment involving blue dye and water
Fig. 2.15b. The proposed micromixers showed significantly improved mixing performance compared to a micromixer of the similar geometry based on the concept of
unbalanced splits and collisions in a wide range of Reynolds numbers. Also, the
pressure drop was acceptable for lab-on-a-chip and μ-TAS.
Sudarsan and Ugaz [50, 51] developed two different micromixers shown in
Fig. 2.16: (a) planar SAR (P-SAR) micromixer capable of generating alternating
lamellae of individual fluid species in a SAR arrangement, and (b) multi-vortex
micromixer based on coupled Dean and expansion vortices (arising out due to
abrupt change in cross-sectional area). Tafti et al. [52, 53] proposed an in-plane