Biomedical Engineering Reference
In-Depth Information
10.7
Shear viscosity as a function of diameter of Al
2
O
3
in water (a) and
ethylene glycol (b) (volume fraction = 5%) (Lu and Fan, 2008).
primary viscous coefficient. According to Adachi et al.
(1998), p is
κ
1
, which is the double layer thickness (also known as
the Debye length) and is expressed as:
proportional to
3
þ k
1
r
3
¼
ð
r
Þ
p
½
10
:
6
r
3
Computing the value of the Debye length, the average value of p has been
assumed to be 3, which gives the value of [
η
]
EV
as 10. Thus, the viscosity