Computational and Mathematical Methods in Medicine
Volume 2012 (2012), Article ID 861837, 14 pages
Research Article

Finite Element Modelling of Pulsatile Blood Flow in Idealized Model of Human Aortic Arch: Study of Hypotension and Hypertension

1Faculty of Technology, Lappeenranta University of Technology, P.O. Box 20, 53851 Lappeenranta, Finland
2South Karelian Institute, Lappeenranta University of Technology, P.O. Box 20, 53851 Lappeenranta, Finland

Received 31 August 2011; Accepted 17 October 2011

Academic Editor: Eun Bo Shim

Copyright © 2012 Paritosh Vasava et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A three-dimensional computer model of human aortic arch with three branches is reproduced to study the pulsatile blood flow with Finite Element Method. In specific, the focus is on variation of wall shear stress, which plays an important role in the localization and development of atherosclerotic plaques. Pulsatile pressure pulse is used as boundary condition to avoid flow entry development, and the aorta walls are considered rigid. The aorta model along with boundary conditions is altered to study the effect of hypotension and hypertension. The results illustrated low and fluctuating shear stress at outer and inner wall of aortic arch, proximal wall of branches, and entry region. Despite the simplification of aorta model, rigid walls and other assumptions results displayed that hypertension causes lowered local wall shear stresses. It is the sign of an increased risk of atherosclerosis. The assessment of hemodynamics shows that under the flow regimes of hypotension and hypertension, the risk of atherosclerosis localization in human aorta may increase.