Simulation of blood flow in the abdominal aorta considering penetration into the organs using pore network model

Karimi, S.; Dadvar, M.; Dabir, B.

doi:10.22061/jcarme.2020.5882.1747

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	Simulation of blood flow in the abdominal aorta considering penetration into the organs using pore network model
Journal of Computational & Applied Research in Mechanical Engineering (JCARME)
مقاله 12، دوره 10، شماره 2 - شماره پیاپی 20، فروردین 2021، صفحه 437-447 اصل مقاله (682.25 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22061/jcarme.2020.5882.1747
نویسندگان
S. Karimi^* ¹؛ M. Dadvar²؛ B. Dabir²
¹Department of Chemical Engineering, Jundi-Shapur University of Technology, Dezful, Iran
²Department of Chemical Engineering, Amirkabir University of Technology, Tehran, Iran
تاریخ دریافت: 06 شهریور 1398، تاریخ بازنگری: 31 فروردین 1399، تاریخ پذیرش: 09 اردیبهشت 1399
چکیده
One of the critical limitations of studies on cardiovascular blood flow simulation is to determine outlet boundary conditions accurately. In the present study, for the first time, pore network model is proposed as a useful technique to take into account interaction between blood flow and other body organs. Thus body organs are simulated by pore network model. Thanks to the method, pressure distribution among the porous medium of organ is determined and consequently the required boundary conditions are obtained for the simulation of arterial blood flow. The comparison between permeability resulted from developed model and experimental results shows that the difference is about 3% for the assumption of non-Newtonian blood flow through organ. This indicates the pore network model can accurately simulate velocity and pressure in the organs. Afterwards, a 3D patient-specific abdominal aorta was simulated under the proposed outlet boundary condition. The maximum deviation of predicted pressure from physiological data is 11.14% near the systole instant. Generally, the predicted pressure and velocity profiles are evident that the model can adequately simulate the blood flow through the arteries which feed main organs.
کلیدواژه‌ها
Abdominal Aorta؛ Non-newtonian blood flow؛ Outlet boundary؛ Condition؛ Porous media

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Simulation of blood flow in the abdominal aorta considering penetration into the organs using pore network model