Applications of FSI for Cardiovascular Haemodynamics - Computational Hemodynamics: Theory, Modelling and Applications - page 238

Fig. 8.1 Geometry of carotid bifurcation. The degree of stenosis occurs at the maximum ICA
sinus cross-section denoted by measurement variable b

Table 8.1 Artery vessel structure, blood properties, dimensions of carotid bifurcation, and param-
eters for the fluid-structure interaction. These values are used to define the artery geometry and
structural behaviour, as well as the physical properties of the blood flow model
Symbols

Value Units

Material properties
Young's modulus of artery

E 5.00E + 05 Pa

Poisson ratio of artery ν 0.5

Density of blood ρ 1050 kg m 3

Viscosity of blood μ 3.50E − 03 Pa s

Dimension
CCA internal diameter a 0.006 m

Maximum sinus internal diameter b 0.00666 m

Distance from bifurcation point to location of maximum
sinus internal diameter

c 0.00546 m

Total length of sinus d 0.0138 m

ICA internal diameter e 0.00444 m

ECA internal diameter f 0.0039 m

Artery wall thickness g 0.0007 m

ICA bifurcation angle θ 1 25 degree

ECA bifurcation angle θ 2 25 degree

Parameters for fluid-structure interaction
Relaxation factor for coupling R 0.75 -

Convergence criteria for coupling ε 0 1.00E − 05 -

Time step size t s 0.01 s

Time t - s

Pressure pulse period T 0.92 s