A Computer Simulation of the Blood Flow at the Aortic Bifurcation with Flexible Walls

by Zheng Lou, Univ of Michigan, Ann Arbor, United States,
Wen-Jei Yang, Univ of Michigan, Ann Arbor, United States,



Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond

Abstract: To understand the possible role of hemodynamics in the atherogenesis, especially the effect of the flexibility of the arteries, a two-dimensional numerical model for the blood flow at the aortic bifurcation with linear viscoelastic walls has been developed. The arbitrary Lagrangian-Eulerian method was used to deal with the moving boundaries. The successive-over-relaxation method was used to solve both the vorticity and Poisson equations. A flexible bifurcation experienced the shear stresses about 10% lower than those by a rigid one.

Subject Headings: Flow simulation | Bifurcations | Fluid flow | Two-dimensional models | Two-dimensional flow | Numerical models | Walls | Shear stress

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