TY - JOUR
T1 - Methods of computational modeling of coronary heart vessels for its digital twin
AU - Naplekov, Ilya
AU - Zheleznikov, Ivan
AU - Pashchenko, Dmitry
AU - Kobysheva, Polina
AU - Moskvitina, Anna
AU - Mustafin, Ravil
AU - Gnutikova, Maria
AU - Mullagalieva, Alina
AU - Uzlov, Pavel
N1 - Publisher Copyright:
© 2018 The Authors, published by EDP Sciences.
PY - 2018/6/12
Y1 - 2018/6/12
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85049377337&partnerID=8YFLogxK
U2 - 10.1051/matecconf/201817201009
DO - 10.1051/matecconf/201817201009
M3 - 会议文章
AN - SCOPUS:85049377337
SN - 2261-236X
VL - 172
JO - MATEC Web of Conferences
JF - MATEC Web of Conferences
M1 - 01009
T2 - 3rd International Conference on Design, Analysis, Manufacturing and Simulation, ICDAMS 2018
Y2 - 6 April 2018 through 7 April 2018
ER -