Eur. Phys. J. Special Topics 229, 3009–3020 (2020)
https://doi.org/10.1140/epjst/e2020-000128-2

Regular Article

In-silico study of hemodynamic effects in a coronary artery with stenosis

¹ Laboratory of Multi-Scale Mathematical Modeling, Department of Theoretical and Mathematical Physics, Ural Federal University, 620000 Ekaterinburg, Russia
² Institute of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russia
³ Ural State Medical University, 620028 Ekaterinburg, Russia
⁴ Tyumen Cardiology Research Center, Tomsk National Research Medical Center, Russian Academy of Sciences, 625026 Tomsk, Russia

^a e-mail: ilya.starodumov@urfu.ru

Received: 16 June 2020
Accepted: 10 September 2020
Published online: 19 November 2020

Abstract

The paper presents a study of hemodynamic processes in an artery with stenosis. The Navier–Stokes model and the Carreau model for a non-Newtonian fluid are proposed for computer simulations. Computational experiments were performed using the FlowVision^© software. The results of a test simulation for blood flow in the 2D tube, as well as a simulation for the native artery model, based on medical research data, are presented. The simulation results show that in a native artery with a stenosis, the distribution of blood velocity and viscosity may be asymmetric, and their local values differ significantly from the average values observed in the artery after the presumed revascularization. The results have great potential importance for diagnosing and treating arterial stenosis.