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T型分支中血流的数值模拟及其在“端侧”瘘管中的应用。

A numerical simulation of the flow in a T-type bifurcation and its application to an "end to side" fistula.

作者信息

Enden G, Israeli M, Dinnar U

出版信息

J Biomech Eng. 1985 Nov;107(4):321-6. doi: 10.1115/1.3138564.

DOI:10.1115/1.3138564
PMID:4079358
Abstract

Some recent surgical procedures such as arteriovenous fistula, or coronary and cerebral by-passes were observed to yield counterdirectional branching blood flows. There is a lack of knowledge about the role of the counterdirectional flow ratio, the angle of anastomosis and the shear stresses in the process of thrombogenesis that leads to shunt occlusion. The program developed to simulate these hemodynamic conditions uses an efficient numerical scheme for the solution of the 2-D Navier-Stokes equations and can be easily adapted to flows in other geometrical configurations.

摘要

最近观察到一些外科手术,如动静脉瘘、冠状动脉搭桥术和脑搭桥术,会产生反向分支血流。对于反向血流比、吻合角度和剪切应力在导致分流闭塞的血栓形成过程中的作用,目前还缺乏了解。为模拟这些血流动力学条件而开发的程序使用了一种高效的数值方案来求解二维纳维-斯托克斯方程,并且可以很容易地适用于其他几何构型中的流动。

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引用本文的文献

1
Numerical model of blood flow through a bifurcation: interaction between an artery and a small prosthesis.通过分叉处的血流数值模型:动脉与小型假体之间的相互作用。
Med Biol Eng Comput. 1992 Sep;30(5):543-50. doi: 10.1007/BF02457835.