Volume 19, Issue 3 (International Journal of Engineering 2008)                   2008, 19(3): 1-12 | Back to browse issues page

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Study of pulsatile blood flow dynamic in stenosed vessels . Journal title 2008; 19 (3) :1-12
URL: http://ijiepm.iust.ac.ir/article-1-41-en.html
Abstract:   (10339 Views)

In this paper pulsatile laminar blood flow in an axisymmetric stenosed tube is simulated by the Non-Newtonian Power law model. Effect of stenosis, for severe condition of 75% reduction of local area was considered and the flow patterns for three Womersley numbers were studied. The results show that there is a fundamental difference in the flow pattern at . This difference is related to second co-rotating vortex which is observed downstream of stenosis at . The propagation of disturbance that leads to formation of this vortex is shown by wall shear stress surface at . Examining three flow patterns shows that the time that primary vortex forms on the distal face of stenosis is delayed with increasing Womersley number
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Type of Study: Research |
Received: 2009/05/4 | Published: 2008/09/15

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