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.

中文翻译：

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腹主动脉瘤可渗透模型中的氧运输

本文报告了通过腹主动脉瘤 (AAA) 的动脉管腔和多孔动脉壁的耦合质量和动量传输的建模和模拟。通常被忽略的多孔结构和壁内流动的影响对于量化动脉瘤壁中的氧浓度至关重要，并将在这项工作中通过 AAA 的新型耦合流体-多孔结构-质量传输模型来解决。计算求解器可预测动脉中的滤过速度和氧浓度，并使用进一步的模拟来研究壁氧浓度与渗透性之间的关系。结果证明了血液和过滤流之间的基本耦合，特别是它们的相互作用如何影响氧气运输。