Biomedical Engineering Reference
In-Depth Information
0
2
120
4
90
6
60
8
30
10
0
Fig. 7.16
Fibrin concentration evolution along an axial surface line during the initial 120 s
120
5400
5000
4600
4200
3800
3400
3000
2600
2200
1800
1400
1000
600
200
90
60
30
0
0
2
4
6
8
10
Axial distance
Fig. 7.17
Fibrin concentration ŒIa along the axial surface line
-
Coupled flow model is generalized-Newtonian (i.e., with variable, shear-
dependent viscosity), compared to the more complex nonlinear viscoelastic
model used in previous case.
-
Slip boundary conditions are used here, showing that blood slip influence can
be very important to the whole blood coagulation process, due to the consequent
supply of activated platelets in the clot region. Physical motivations for the use
of slip conditions in blood dynamics (usually disregarded in the recent literature)
are illustrated in [
72
].
The type of results produced by this model is similar to those of the previous model,
so only the basic features of this new model will be shown here.
Biochemistry Model
.
The biochemistry model can formally be written as a set
of 13 ADR equations describing the propagation and termination phases of
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