Figure 1
Schematic diagram of blood vessel model.
Table 1
Material parameters of blood and vessel wall in simulation calculation.
| BLOOD MATERIAL PARAMETERS | VESSEL WALL MATERIAL PARAMETERS | |||||
|---|---|---|---|---|---|---|
| VOLUME COMPRESSION MODULUS | INITIAL DENSITY | DYNAMIC COEFFICIENT OF VISCOSITY | Density | YOUNG’S MODULUS | POISSON’S RATIO | |
| Example 1 | 0.5GPa | 1050 kg/m3 | 0.004Pažs | 1150 kg/m3 | 2.5MPa | 0.45 |
| Example 2 | 2.5GPa | |||||
| Example 3 | 4.5GPa | |||||
| Example 4 | ∞ | |||||
Figure 2
Pressure pulse history loaded upstream of the blood vessel.
Figure 3
Schematic diagram of monitoring points.
Figure 4
Propagational properties of (a) pressure, (b) axial velocity pulse wave at different monitoring points with a rigid model of blood vessels.
Figure 5
Propagational properties of (a) pressure, (b) axial velocity pulse wave at different monitoring points with considering blood compressibility into an elastic model of blood vessels.
Figure 6
Propagational properties of radial displacement waves on inner and outer surfaces of vascular wall at different sections (a) x1 = l/20, (b) x2 = l/10, (c) x3 = 3l/20, (d) x4 = l/5 with considering blood compressibility into elastic model of blood vessels.
Figure 7
The radial displacement wave of artery at t = 0.04s. (a) Kb = 0.5GPa, (b) Kb = 2.5GPa, (c) Kb = 4.5GPa, (d) Kb = ∞.
Figure 8
Blood streamline diagram at t = 0.01s. (a) Kb = 0.5GPa, (b) Kb = 2.5GPa, (c) Kb = 4.5GPa, (d) Kb = ∞.
Figure 9
The relationship between blood compressibility and the peak amplitude of (a) pressure, (b) axial velocity pulse wave at different monitoring points.