The use of smoothed particles approach in realistic mathematical model of intracardiac blood flow: Simulation of a self-organizing tornado-like flow
- 作者: Bockeria L.1, Gorodkov A.1, Agafonov A.1, Zhorzholiani S.1, Kiknadze G.1, Mironov A.1, Talygin E.1
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隶属关系:
- Bakoulev Scientific Center for Cardiovascular Surgery
- 期: 卷 43, 编号 2 (2017)
- 页面: 213-221
- 栏目: Article
- URL: https://journals.rcsi.science/0362-1197/article/view/177161
- DOI: https://doi.org/10.1134/S0362119717020049
- ID: 177161
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详细
We performed computer simulation and visualization of blood flow in the left ventricle by the method of smooth particle hydrodynamics (SPH). This visualization qualitatively describes the evolution of twisted stream and graphically demonstrates the direction of velocity field at each moment of time. The geometrical features of the left ventricle are approximated by three-dimensional segmentation of experimental clinical images obtained from multispiral computer tomography (MSCT). The model adequately describes the possible configuration of swirling flow in the left ventricle and is a part of a comprehensive study of swirling flows in different compartments of heart, which comply with a family of the exact solutions of hydrodynamic Navier–Stokes equations for the class of quasipotential1 swirling flows. Computer visualization shows how simulated by SPH method jet of a model liquid, which is placed in limited space, remains continuity and keeps its clockwise vorticity along the direction of the flow propagation during the whole cycle. Then it turns on approximately 120° by the time of ejection into the aorta. Such structure of the flow provides more effective pumping of blood as a model liquid through the ventricle as compared to a lamellar flow mode.
作者简介
L. Bockeria
Bakoulev Scientific Center for Cardiovascular Surgery
Email: andrey.mironov24@yahoo.com
俄罗斯联邦, Moscow, 121552
A. Gorodkov
Bakoulev Scientific Center for Cardiovascular Surgery
Email: andrey.mironov24@yahoo.com
俄罗斯联邦, Moscow, 121552
A. Agafonov
Bakoulev Scientific Center for Cardiovascular Surgery
Email: andrey.mironov24@yahoo.com
俄罗斯联邦, Moscow, 121552
S. Zhorzholiani
Bakoulev Scientific Center for Cardiovascular Surgery
Email: andrey.mironov24@yahoo.com
俄罗斯联邦, Moscow, 121552
G. Kiknadze
Bakoulev Scientific Center for Cardiovascular Surgery
Email: andrey.mironov24@yahoo.com
俄罗斯联邦, Moscow, 121552
A. Mironov
Bakoulev Scientific Center for Cardiovascular Surgery
编辑信件的主要联系方式.
Email: andrey.mironov24@yahoo.com
俄罗斯联邦, Moscow, 121552
E. Talygin
Bakoulev Scientific Center for Cardiovascular Surgery
Email: andrey.mironov24@yahoo.com
俄罗斯联邦, Moscow, 121552