Haowei, M. A. and Hussein, Uday Abdul-Reda and Al-Qaim, Zahraa Haleem and Altalbawy, Farag M. A. and AI Sadi, Hafidh l. and Fadhil, Ali Abdulhussain and Al-Taee, Muataz Mohammed and Hadrawi, Salema K. and Khalaf, Reem Muhsin and Jirjees, Iman Hazim and Zarringhalam, Majid and Hekmatifar, Maboud (2023) Employing Sisko non-Newtonian model to investigate the thermal behavior of blood flow in a stenosis artery: Effects of heat flux, different severities of stenosis, and different radii of the artery. Alexandria Engineering Journal, 68. pp. 291-300. ISSN 1110-0168, DOI https://doi.org/10.1016/j.aej.2022.12.048.
Full text not available from this repository.Abstract
In this paper, a numerical investigation is carried out to study the blood flow behavior within the stenosis artery. An artery is under applying a constant heat flux on the boundary walls in this simulation. Lumen model is employed for simulation of the artery and the Sisko model is used to indicate properties of blood as non-Newtonian fluid. Also, the cone geometry of stenosis with different severities and radii are simulated. Then, effects of heat flux, different severities of stenosis, and different radii of the artery are studied on the blood flow behavior. It is reported that before stenosis, velocity is increasing and heat transfer rate is also increasing which cause temperature to be decreased in stenosis position. But after stenosis, velocity is decreased. Consequently, heat transfer rate is decreased which leads to reduction in blood temperature. Also, since the blood par-ticles adhere to the arterial wall, with increasing radial distance from the walls, velocity is increased, which causes maximum velocity to be found in the central region. Moreover, the thermal driving force is damped in the lateral region of the artery and does not affect velocity. On the other side, as the severity increases step by step, the temperature decreases, respectively. In fact, the cross-sectional area decreases with increasing severity of stenosis. Consequently, velocity increases and causes heat transfer enhancement, which leads to a reduction in blood temperature. Therefore, the highest temperatures are related to the artery with an intensity of 20%. Although the cross-section area of the artery can change blood temperature, but its role can be ignorable in temperature enhancement and body healthy in this regard.(c) 2023 THE AUTHORS. Published by Elsevier BV on behalf of Faculty of Engineering, Alexandria University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).
| Item Type: | Article |
|---|---|
| Funders: | None |
| Uncontrolled Keywords: | Sisko blood model; Different stenosis severity; Different Artery radii |
| Subjects: | T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Engineering > Department of Mechanical Engineering |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 08 Nov 2024 02:41 |
| Last Modified: | 08 Nov 2024 02:41 |
| URI: | http://eprints.um.edu.my/id/eprint/38338 |
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