中文摘要：

在僵硬腹的大动脉的动脉瘤(AAA ) 的脉动的流动地模型数字地被调查，并且模拟结果在对粒子图象 velocimetry (PIV ) 的好同意被发现大小。有至少一在 AAA 膨胀的旋涡，和一面相当高的墙砍应力在远侧的结束存在，并且这样 AAA 处于破裂的危险中。医疗由在 AAA 插入脉管的 stent 接枝组成，它将减少血影响到内部墙和还原剂墙砍强调以便破裂能被阻止。基于多孔的中等模型，一个新计算模型被开发，结果被记录。stent 接枝的治疗学的效果与新模型一起数字地被验证。

英文摘要：

Pulsatile flow fields in rigid abdominal aortic aneurysm （AAA） models were investigated numerically, and the simulation results are found in good agreement with particle image velocimetry （PIV） measurements. There are one or more vortexes in the AAA bulge, and a fairly high wall shear stress exists at the distal end, and thus the AAA is in danger of rupture. Medical treatment consists of inserting a vascular stent-graft in the AAA, which would decrease the blood impact to the inner walls and reduce wall shear stress so that the rupture could be prevented. A new computational model, based on porous medium model, was developed and results are documented. Therapeutic effect of the stent-graft was verified numerically with the new model.