A computer simulation of the non-Newtonian blood flow at the aortic bifurcation.
A two-dimensional numerical model was developed to determine the effect of the non-Newtonian behavior of blood on a pulsatile flow at the aortic bifurcation. The blood rheology was described by a weak-form Casson equation. The successive-over-relaxation (SOR) method was used to solve both the vorticity and Poisson equations numerically. It was disclosed that the non-Newtonian property of blood did not drastically change the flow patterns, but caused an appreciable increase in the shear stresses and a slightly higher resistance to both flow separations and the phase shifts between flow layers.
Lou
Z
Z
Transportation Research Institute, University of Michigan, Ann Arbor 48109.
Yang
W J
WJ
D001012:Aorta, Abdominal / Q000502:physiology*; D001696:Biomechanical Phenomena; D003198:Computer Simulation; D007083:Iliac Artery / Q000502:physiology; D008955:Models, Cardiovascular; D012039:Regional Blood Flow; D012212:Rheology; D013314:Stress, Mechanical