Biomedical Engineering Reference
In-Depth Information
V
total for zero PV pore pressure
vs
w
10
−
4
×
4.5
f =
0.05
4
f =
0.1
f =
0.15
3.5
3
2.5
2
1.5
1
0.5
0
0
1
2
3
4
5
6
7
8
w
Figure 9.10
Aplotof
V
total
,thefluidvol-
ume exchanged between the PLC and the PV
is the case of zero PV pressure, against the
driving frequency
ω
the nonzero PV pressure reduces
V
total
,the
case of zero PV pressure yields the maxi-
mum value of
V
total
.Thevaluesofparame-
ters used in the plot are listed in Table 9.1.
(From Cowin
et al
.[91].)
L
,thePLC
porosity, equal to 0.05, 0.1, and 0.15. Since
for values of
φ
10
5
15
×
w
p
w
t
=
0.28
p
w
t
=
0.20
t
=
0.36
p
w
t
=
0.44
p
10
5
0
0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 0.95
1
b
Figure 9.11
A plot of the pore pressure in the PV,
p
V
(
β
,
t
)
given by Zhang
et al
. [87] using a PV permeability on the
order of 10
−
10
m
2
, as a function of the dimensionless radial
coordinate of the model bone
β
at various temporal points
in the cyclic oscillation. The values of parameters used in
the plot are listed in Table 9.1. (From Cowin
et al
.[91].)
