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Table 1 Data and results of the study. AAA geometric and mesh details, required computational time and storage, maximum wall stress values and locations from FSI and static pressure simulations. Percentage difference was based on the FSI solution.

From: Fluid structure interaction of patient specific abdominal aortic aneurysms: a comparison with solid stress models

 

Patient 1

Patient 2

Patient 3

Max AAA Diameter (mm)

57

53

50

Max Lumen Diameter (mm)

40

42

32

AAA z-axis length (mm)

134

120

96.1

Number of Fluid elements

26,928

25,760

11,628

Number of Solid elements

25,760

13,800

6,800

Max Wall Stress FSI (Pa)

785,126

567,969

844,014

Max Wall Stress Static (Pa)

784,052

567,508

844,908

% Difference

0.13%

0.08%

-0.1%

Location of peak stress, distance from renal arteries (mm)

111

48

72

CPU time static solid simulations (s)

1068

337

762

CPU time FSI (s)

2,135,517

878,210

1,716,848

Hard drive memory storage, gigabytes (GB)

32.5

28.8

14.1