Inertial Migration of Cancer Cells in a Microfluidic Device - Bioanalysis Advanced Materials Methods and Devices - page 22

Fig. 2.4 Probability density of the width position of rigid spheres at the upstreamand the downstream
of the test section with Re p ¼ 0.622. The sidewall is located 225 m m from the center [ 22 ]

Fig. 2.5 Probability density of the width position of rigid spheres at the downstream of the test
section: ( a ) effect of particle Reynolds number Re p ( L ¼ 1.0 cm); and ( b ) effect of the channel

length L ( Re p ¼ 0.16) [ 22 ]

Figure 2.4 shows the probability density of the width position of rigid spheres
upstream and downstream, with Re p ¼ 0.62. The probability density upstream

was relatively uniform, while that downstream peaked around 125 m mfromthe

center (i.e., 100 m from the sidewall). This result was consistent with that of

Bhagat et al. [ 1 ], who reported that particles migrated to about 0.4 W from the
sidewalls, where W is the half-width of the test section. The effects of Re p and the
length of the test section on the migration of rigid spheres are shown in Fig. 2.5 .

m