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FIGURE 2.1
Atherosclerotic arteries.
FIGURE 2.2
Considerable geometry of arterial stenosed segments and stenosis throat.
In such case, the radius of artery
R
(
z
) can be written as
()
{
}
dzdl
≤≤+
Rz R
=
⎡
⎤
, where
(1)
1
−
Al
(
)
( )
s
−
(
zd
−
)
−
(
zd
−
)
s
⎣
⎦
0
0
0
and radius of the artery is
R
(
z
)
=
R
0
; otherwise
R
δ
s
ss
/(
−
1)
where
A
=
−
The Navier-Stoke equation is
s
( )
s
0
0
∂
p
1
∂
∂
B
−+
()
rz
+
μ
M
=
0
(2)
0
∂
z
r
∂
r
∂
z
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