Influence of junction angle on hemodynamics in a bypass model

• Autorzy: Vimmr J. , Jonasova A.
• Konferencja: International Seminar of Applied Mechanics (11 ; 08-10.06.2007 ; Wisła, Polska)
• Języki publikacji: EN

Abstrakty

EN

The problem of steady laminar flow of an incompressible Newtonian fluid through an idealized 2-D bypass model with a stenosed coronary artery is solved using the finite volume approach of the MacCormack and Runge-Kutta schemes. The bypass model includes proximal and distal parts of the artery together with end-to-side graft. The changes of hemodynamics are investigated with three different junction angles (ɑ = 20°,45°,70°) between the graft and the artery. The velocity and wall shear stress distributions obtained using both numerical schemes for all three cases are analyzed and compared with each other.

Słowa kluczowe

EN

hemodynamic; bypass; finite volume method

PL

hemodynamika; bypass; metoda objętości skończonych

• Wydawca: Wydawnictwo Katedry Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Modelling and Optimization of Physical Systems
• Rocznik: 2007
• Tom: z. 6
• Strony: 153--156
• Opis fizyczny: Bibliogr. 4 poz.

Twórcy

autor

Vimmr J.

• University of West Bohemia in Pilsen, Faculty of Applied Sciences, Department of Mechanics, Czech Republic

autor

Jonasova A.

• University of West Bohemia in Pilsen, Faculty of Applied Sciences, Department of Mechanics, Czech Republic

Bibliografia

• 1. Henry F.S., Küpper C, Lewington Ν.P.: Simulation of flow through a Miller cuff bypass graft. Computer Methods in Biomechanics and Biomedical Engineering, 2002, 5: 207-217
• 2. Jonášová Α., Vimmr J.: Blood flow through a bypass model with stenotic artery. In: Proceedings of the conference Topical problems of fluid mechanics, Prague, 2007
• 3. Lee D., Su J.M., Liang H.Y.: A numerical simulation of steady flow fields in a bypass tube. Journal of Biomechanics, 2001, 34: 1407-1416
• 4. Lei M., Kleinstreuer C., Archie J.P.: Geometric design improvements for femoral graft-artery junctions mitigating restenosis. Journal of Biomechanics, 1996, 29: 1605-1614