Biomedical Engineering Reference
In-Depth Information
FIGURE 3.14
Schematic of mixing in a micro-enclosure.
FIGURE 3.15
Concentration of species X in a square enclosure.
(
u
o
¼
0.003 m/s) generates a circulatory motion within the cavity. Therefore, besides molecular
diffusion, species X is convected by the flowing fluid. The convective transport of species X can
greatly enhance mixing. This problem is governed by the species conservation (Eqn
3.1
) and the
Navier-Stokes (Eqns
3.3 and 3.4
) equations. The diffusion coefficient is set to
D
10
9
m
2
/s. As the
¼
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