Oxygen transport in a permeable model of abdominal aortic aneurysm

This paper reports on modelling and simulation of the coupled mass and momentum transport through the arterial lumen and the porous arterial wall of an abdominal aortic aneurysm (AAA). The effect of porous structure and intramural flow, which is usually neglected, is essential to quantify the oxygen concentration in the aneurysmal wall and will be addressed in this work via a novel coupled fluid-porous structure-mass transport model for AAA. The computational solver provides a prediction of the filtration velocity and oxygen concentration in the artery and further simulations are used to investigate the relation between the wall oxygen concentration and permeability. The results demonstrate the essential coupling between blood and filtration flow and specifically how their interactions affect oxygen transport.

Automated summary

This paper presents a modeling and simulation study of mass and momentum transport through the arterial lumen and the porous arterial wall of an abdominal aortic aneurysm (AAA). The authors introduce a novel coupled fluid-porous structure-mass transport model to address the impact of porous structure and intramural flow on oxygen concentration in the aneurysmal wall. Computational simulations provide insights into filtration velocity and oxygen concentration in the artery, revealing the essential coupling between blood and filtration flow and how it influences oxygen transport.