Modelling of hemodynamics in 3D bypass models

• Autorzy: Vimmr J. , Jonasova A.

Warianty tytułu

CS

Modelování hemodynamiky ve 3D modelech bypassu

• Konferencja: International Seminar of Applied Mechanics (14 ; 11-13.06.2010 ; Wisła, Polska)
• Języki publikacji: EN

Abstrakty

EN

The study is divided into two parts. The first one deals with the modelling of non-Newtonian effects in occluded femoral bypass considering steady blood flow. The second part is devoted to the analysis of pulsatile Newtonian blood flow in stenosed coronary bypass applying realistic inlet flow rates. The bypass models are assumed to be idealized and complete, i.e. the native artery and the bypass graft are modelled as tubes with both proximal and distal parts. The governing equations are solved numerically with explicit and implicit schemes formulated in the sense of the finite volume method using developed in-house software.

CS

Tato studie je rozdělena na dvě části. První se zabývá modelováním nenewtonských efektů ve femorálním bypassu pří uvažováni ustáleného proudění krve. Druhá část je věnována analýze pulzujícího proudění krve jakožto newtonské kapaliny v koronárním bypassu. Matematický model je řešen pomocí explicitních a implicitních schémat formulovaných ve smyslu metody konečných objemů a za použití vlastního vyvinutého softwaru.

Słowa kluczowe

EN

hemodynamics; blood flow; numerical simulation

PL

hemodynamika; przepływ krwi; symulacja numeryczna

• Wydawca: Wydawnictwo Katedry Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Modelling and Optimization of Physical Systems
• Rocznik: 2010
• Tom: z. 9
• Strony: 87--92
• Opis fizyczny: Bibliogr. 7 poz.

Twórcy

autor

Vimmr J.

• University of West Bohemia, Faculty ofApplied Sciences, Department of Mechanics, Czech Republic

autor

Jonasova A.

• University of West Bohemia, Faculty ofApplied Sciences, Department of Mechanics, Czech Republic

Bibliografia

• 1. Bertolotti C., Deplano V., Fuseri J., Dupouy P.: Numerical and experimental model of post-operative realistic flows in stenosed coronary bypasses. Journal of Biomechanics, 2001,34(8): 1049-1064.
• 2. European Heart Network. European Cardiovascular Disease Statistics - 2008 Edition. Oxford, UK, 2008.
• 3. Jonášová A.: Finite volume modeling of blood flow in a bypass model. Diploma thesis, University of West Bohemia, Pilsen, 2007.
• 4. Leuprecht A., Perktold K.: Computer simulation of non-Newtonian effects of blood flow in large arteries. Computer Methods in Biomechanics and Biomedical Engineering, 2000, 4(2): 149-163.
• 5. Leuprecht, A., Perktold, K., Prosi, M., Berk, T., Trubel, W., Schima, H.: Numerical study of hemodynamics and wall mechanics in distal end-to-side anastomoses of bypass grafts. Journal of Biomechanics, 2002, 35(2): 225-236.
• 6. Loth F., Fischer P.F., Bassiouny H.S.: Blood flow in end-to-side anastomoses. Annual Review of Fluid Mechanics, 2008, 40: 367-393.
• 7. Vimmr J.: Modelling of fluid flows with applications to biomechanics and internal aerodynamics. Habilitation thesis, University of West Bohemia, Pilsen, 2010. (in Czech)