Title :
A modeling study of blood flow and oxygen transport in the circle of Willis
Author :
Ji, Chang-Jin ; He, Ying ; Liang, F.Y.
Author_Institution :
Dept. of Modern Mechanic, Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
A computer model for simulating pressure, flow propagation and oxygen transport in the circle of Willis is developed. The model is based on one-dimensional nonlinear equations of pulsatile fluid flow in an elastic tube and oxygen transport equation. The two-step Lax-Wendroff method was employed in the discretization of momentum and continuity equation, the upwind scheme was used in the discretization of the oxygen transport equation. Results reveal that the oxygen concentration fluctuates following the pulsative blood flow, but its range is extremely small. Moreover, due to the influence of the artery wall, the oxygen concentration gradually decreases along the direction of flow.
Keywords :
biotransport; blood vessels; haemodynamics; oxygen; physiological models; pulsatile flow; artery wall; elastic tube; oxygen transport; pulsatile fluid flow; pulsative blood flow; two-step Lax-Wendroff method; Blood; Blood flow; Carotid arteries; Computational modeling; Equations; Mathematical model; Lax-Wendroff method; oxygen transport; the Circle of Willis; upwind scheme Introduction;
Conference_Titel :
Biomedical Engineering and Informatics (BMEI), 2010 3rd International Conference on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6495-1
DOI :
10.1109/BMEI.2010.5639614
