Modelling of blood's non-newtonian behaviour in patient-specific aorto-coronary bypass grafts

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F12%3A43915349" target="_blank" >RIV/49777513:23520/12:43915349 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Modelling of blood's non-newtonian behaviour in patient-specific aorto-coronary bypass grafts
Original language description
The patency and overall performance of implanted bypass grafts is closely related to hemodynamics and its influence on vessel remodelling. In this regard, numerical investigation of blood flow in models reconstructed from clinical data may, next to clinical research, provide a valuable insight into the problem of graft failures, which are usually associated with restenosis and/or occlusive intimal hyperplasia. In this study, numerical results of pulsatile non-Newtonian blood flow in three realistic aorto-coronary bypass models are presented and further discussed with emphasis placed on the distribution of wall shear stress (WSS) and oscillatory shear index (OSI). Blood's shear-thinning behaviour is described by the Carreau-Yasuda model. Assuming all model walls to be impermeable and inelastic, the numerical solution of the mathematical model, which has the form of time-dependent non-linear systém of Navier-Stokes (NS) equations, is carried out on the basis of the three-stage fractional
Czech name
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Czech description
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Project
<a href="/en/project/ED1.1.00%2F02.0090" target="_blank" >ED1.1.00/02.0090: NTIS - New Technologies for Information Society</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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