Biomedical Engineering Reference
In-Depth Information
Figure 9.13
Trajectories of paramagnetic beads in the vicinity of a ferromagnetic rod under the
action of a convective transport and a magnetic force field. Left, fluid velocity at infinity 0.1 mm/S;
right, fluid velocity at infinity 1 mm/s.
with
u
f
0
C
=
7.4
æ
ö
ln
ç
÷
è
ø
Re
2
a
ρ
µ
u
f
f
0
Re
=
f
The velocity field is represented in Figure 9.12.
Calculated trajectories for fluid velocities of 0.1 mm/s and 1 mm/s are shown in
Figure 9.13, for a 1-mm radius fiber and 1-
μ
m Dynal beads. The larger the carrier
fluid velocity, the less the probability of capture by the rod.
Figure 9.14
Principle of magnetic repulsion.
