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http://bura.brunel.ac.uk/handle/2438/10272
Title: | Non-Newtonian and flow pulsatility effects in simulation models of a stented intracranial aneurysm |
Authors: | Cavazzuti, M Atherton, MA Collins, MW Barozzi, GS |
Keywords: | Cerebral aneurysm;Pulsatile flow;Stent;Virtual Intracranial Stenting Challenge 2007;Wall shear stress distribution |
Issue Date: | 2011 |
Citation: | Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 2011, 225 (6), pp. 597 - 609 |
Abstract: | Three models of different stent designs implanted in a cerebral aneurysm, originating from the Virtual Intracranial Stenting Challenge'07, are meshed and the flow characteristics simulated using commercial computational fluid dynamics (CFD) software in order to investigate the effects of non-Newtonian viscosity and pulsatile flow. Conventional mass inflow and wall shear stress (WSS) output are used as a means of comparing the cfd simulations. In addition, a WSS distribution is presented, which clearly discriminates in favour of the stent design identified by other groups. It is concluded that non-Newtonian and pulsatile effects are important to include in order to avoid underestimating wss, to understand dynamic flow effects, and to discriminate more effectively between stent designs. © Authors 2011. |
Description: | Permission to redistribute provided by publishers. |
URI: | http://bura.brunel.ac.uk/handle/2438/10272 |
DOI: | http://dx.doi.org/10.1177/09544119JEIM894 |
ISSN: | 0954-4119 2041-3033 |
Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
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