Computational transport processes for micromixers* - Micromixers Fundamentals Design and Fabrication - page 97

FIGURE 3.17

Concentration of species X at different t in a lid-driven micro-cavity.

3.6.5 Mixing within a droplet flowing in a straight microchannel
Figure 3.22 shows a water droplet carried by oil flowing in a straight microchannel. The droplet of
radius R 1 ¼ m is initially located at (50, 50). The lower half of the droplet contains a nonzero

concentration of species X ( c

25 m

1.0). There is no species X in the rest of the droplet. Since water and oil
are immiscible, species X can only be convected or diffuse within the droplet. This problem is

¼