## 4 Discussion  
The presence of ILT complicates the already difficult disease of abdominal aortic aneurysm. Many researchers used numerical analysis of AAAs to investigate the wall shear  
Figure 11: Volume of (a) oxygen and (b) blood. Figure 10: Streamlines penetrating ILT surface. Figure 9: Decrease in velocity in the ILT region. stress (WSS) distributions and flow patterns within the aneurysm sac [32; 33] to investigate blood flow in AAAs [34; 35; 36]. Wall stress is linked to AAA shape and its components. The shape and maximal diameter of the aneurysm, the thickness of the aneurysm walls, and the thickness and distribution of the ILT inside the aneurysm are all parameters that influence simulation results. The role of abnormal low-density lipoprotein (LDL) build-up inside the arterial wall and hypoxia was well-documented in the development and progression of atherosclerosis [37]. By releasing many types of harmful enzymes, inflammation triggers structural disintegration [38; 39]. Pathogenesis is a major topic of debate. AAAs start with inflammation and weakening of the wall (e.g., the first loss of elastin), leading to atherosclerotic involvement and intraluminal thrombus, according to some studies. ILT's effect on the risk of AAA rupture is controversial. An ILT limited oxygen transport to the AAA wall, perhaps resulting in local hypoxia and wall weakening [16]. The aorta wall's mechanical failure to resist the sign, which occurs when the tangential stress within the wall exceeds the vessel wall's sturdiness at any point, causes aneurysm rupture. Wall stress is affected by pressure level, vessel diameter, and wall thickness [40]. The two most important predictors of AAA rupture are wall stress and strength. The AAA ruptures when local stress surpasses local wall strength, and bursts only when local stress exceeds local wall strength. Figures 5 and 6 show the flow pattern before and after applying porosity to the ILT to provide a better understanding of the overall geometry, ILT surface, and aneurysm wall. In realistic AAA geometries, the CFD study also reveals unknown information on the link between blood flow hemodynamics and rupture site. There is a strong suggestion in the literature that an ILT decreases the tension acting on the aneurysm wall before to rupture, stress known as Von Mises stress. This study could only compute the WSS because it used computational fluid dynamics rather than the finite-element method, and it presumed that the ILT also reduced the WSS. WSS results were compared with those in a previous study by [PERSON] et al. [41; 42; 43; 44]. The geometry's maximal diameter was roughly 6.3 cm, indicating that it was highly prone to rupture, and they used a ruptured abdominal aortic aneurysm model without ILT in their investigation. The aneurysm wall boundary conditions in their study were the same as those in this study. Lower WSS values than their values were expected, since their flow was directly touching the aneurysm wall. Their maximal WSS value was 5 Pascal, and it occurred at the aneurysm wall's inlet, outlets, and central region. The aneurysm wall's center in this study had substantially less shear stress than the aneurysm walls did. Similarly, WSS results were compared to those in [31], where a geometry with an intact abdominal aorta was employed. The boundary conditions of their aneurysm wall and exit were identical to those in this study. Their maximal WSS value (8.91 Pascal) was higher than the maximal WSS value obtained in this study (7.54 Pascal). Moreover, to further study the effect of the porous ILT, results were compared with those of previous studies. In terms of pressure, these results and those in [23] showed similar findings, with their maximal pressure measured being approximately 110 mmHg, which was slightly different to our maximal pressure value, which was 13,548.593 Pascal (13,548.593 Pascal = 101.62279 mmHg). In addition, a realistic material model is crucial in the modeling of AAA wall stress, and it is the cornerstone of the computer simulation of AAA stability.