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A simplified geometry of an aneurism is shown in Figure 1.5. With the on‐web software, the 3D finite element model for the blood flow domain can be parametrically generated. A transition smoothness between the surfaces is achieved by using Bezier's curves. Also, the results can be displayed with a user‐friendly menu in a way suitable for an insight into medical aspects of the blood flow conditions. A detailed description of the software use is given on the web (within Tutorial of each example), while the description of geometric parameters is given in the caption of Figure 1.5.

Figure 1.5 Geometrical parameters of AAA: “Length” is the parameter which defines the total horizontal projection of the generated aneurysm model; “A” is the height of the arc of central line; “Aorta diameter” is the abdominal aorta diameter; “B” is the radius from the central line to the inner wall of the aneurysm; “C” is the radius from the central line to the outer wall of the aneurysm; “Aneurysm length” is an average length of the AAA.