Numerical model and experimental investigation of blood flow through a bifurcation: Interaction between an artery and a small prosthesis

Dafna Paz, Shmuel Einav, Franz Raderer, Wolfgang Trubel

Research output: Contribution to journalArticlepeer-review

Abstract

The use of prosthetic vascular grafts as bypass to arteries of small diameter (<5 mm) often is thwarted by occlusion after months of apparently normal function. This work presents a numeric simulation of the flow through a distal anastomosis. A finite element method has been applied, providing informalion on the velocity field, streamlines, wall shear stresses, and vorticity in the different geometries. The study illustrates the dependence of the flow pattern and wall shear stress distribution upon Reynolds number, and the results show high shear stresses, approximately 3-5 times larger than normal, acting on the vessel wall at the branching point for the small diameter branch.

Original languageEnglish
Pages (from-to)326-333
Number of pages8
JournalASAIO Journal
Volume43
Issue number4
DOIs
StatePublished - Aug 1997

Fingerprint

Dive into the research topics of 'Numerical model and experimental investigation of blood flow through a bifurcation: Interaction between an artery and a small prosthesis'. Together they form a unique fingerprint.

Cite this