动脉分叉管道血液流动的边界元分析  

The Boundary Element Study on Arterial Bifurcation Vessel Flow

作　　者：杨德全[1] 彭红梅[1] 

机构地区：[1]内蒙古民族大学物理与电子信息学院,通辽028043

出　　处：《生物医学工程学杂志》2008年第4期814-817,共4页Journal of Biomedical Engineering

基　　金：国家自然科学基金资助项目(19062003)

摘　　要：我们用边界元方法研究了一类动脉分叉血管中血液流动的流体动力特性,计算了分叉血管无病变和主支管有病变时血液流动的速度矢量分布,比较了主支管壁有病变和无病变两种情况下内外侧壁切应力的大小,同时计算了分叉附近有颗粒状绕流物时血液的流场分布,及颗粒物所受压力状况,给出了颗粒物的运动趋势,分析了引起粥样斑块病变的可能原因。In this paper a kind of arterial bifurcation vessel s hemodynamic characteristics are studied with the boundary element method, and the blood flowing velocity vector distributions are calculated when there is pathologic change in the branch vessel wall and when there is no pathologic change. The shear stress value at the lateral wall and that at the medial wall are compared when there is pathologic change in the main branch vessel wall and when there is no pathologic change. Moreover, the flow field distrib...

关 键 词：分叉血管 病变 切应力 边界元方法 

分 类 号：R318.01[医药卫生—生物医学工程]