Methods of computational modeling of coronary heart vessels for its digital twin

Ilya Naplekov, Ivan Zheleznikov*, Dmitry Pashchenko, Polina Kobysheva, Anna Moskvitina, Ravil Mustafin, Maria Gnutikova, Alina Mullagalieva, Pavel Uzlov

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations

Abstract

In this work, methods of numerical modelling of the coronary vessels system of the human heart have been studied. This investigation includes transient flow of the liquid - blood and dynamics of zones of shear stress at vessels. The main goal of the research is obtaining of hemodynamic and shear stress for creating the digital twin of coronary heart vessels. The results were obtained for low Reynolds numbers about 20 of three-dimensional laminar flow. With this Reynolds number the turbulent flow of the blood is modelled by Realizable k-ϵ model, and SST models to the narrowing, expansions, and blocks inside the vessels. Loads caused by the additional energy consumption because of the turbulent flow of the blood (increase in arterial blood pressure) have been analyzed. A two-dimensional model of a separated vessel with fixed blood back-flow prevention is developed. Presence of a turbulent flow core is discovered. By the means of stress-strain properties of the model, visual representation of the wearing process of the blood back-flow preventer, and heart diseases progression is obtained.

Original languageEnglish
Article number01009
JournalMATEC Web of Conferences
Volume172
DOIs
StatePublished - 12 Jun 2018
Externally publishedYes
Event3rd International Conference on Design, Analysis, Manufacturing and Simulation, ICDAMS 2018 - Chennai, Tamilnadu, India
Duration: 6 Apr 20187 Apr 2018

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