000009149 001__ 9149
000009149 005__ 20141204092412.0
000009149 04107 $$aeng
000009149 046__ $$k12/05/2014
000009149 100__ $$aVimmr, J.
000009149 24500 $$aNon-Newtonian effects of pulsatile blood flow in a realistic bypass graft geometry

000009149 24630 $$n18.$$pEngineering Mechanics 2012
000009149 260__ $$bInstitute of Theoretical and Applied Mechanics, AS CR, Prague
000009149 506__ $$arestricted
000009149 520__ $$2eng$$aThe study is focused on mathematical modelling of pulsatile blood flow in a patient-specific aorto-coronary bypass model with individual graft. Blood is considered to be an incompressible nonNewtonian fluid, whose behaviour is described by the macroscopic Carreau-Yasuda model. The numerical solution of the non-linear system of incompressible Navier-Stokes equations is based on the three-stage fractional step method and the cell-centred finite volume method formulated for hybrid unstructured tetrahedral grids. Since patency and long-term performance of all implanted bypass grafts is closely related to hemodynamics, all obtained results are analysed and discussed with the help of several significant hemodynamical wall parameters such as cycle-averaged wall shear stress and oscillatory shear index.

000009149 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009149 653__ $$aaorto-coronary bypass, non-Newtonian fluid, fractional step method, finite volume method

000009149 7112_ $$aEngineering Mechanics 2012$$cSvratka (CZ)$$d12/05/2014 - 15/05/2014$$gEM2012
000009149 720__ $$aVimmr, J.$$iJonášová, A.$$iBublík, O.
000009149 8560_ $$ffischerc@itam.cas.cz
000009149 8564_ $$s914797$$uhttps://invenio.itam.cas.cz/record/9149/files/038_Vimmr_J-FT.pdf$$yOriginal version of the author's contribution as presented on CD, paper (No. 038).
000009149 962__ $$r8924
000009149 980__ $$aPAPER