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Analysis of pulsatile blood flow through elliptical multi-stenosed inclined artery influenced by body acceleration

Analysis of pulsatile blood flow through elliptical multi-stenosed inclined artery influenced by body acceleration

Authors :
Aziz Ullah Awan
Muhammad Usman Khalid
Sohail Nadeem
Muhammad Hasnain Shahzad
N. Ameer Ahammad
Fehmi Gamaoun
Ahmed M. Hassan
Source :
Engineering Science and Technology, an International Journal, Vol 47, Iss , Pp 101545- (2023)
Publication Year :
2023
Publisher :
Elsevier, 2023.

Abstract

The effect of body acceleration on the pulsatile flow of blood through the elliptical artery having stenosis at the multiple positions of its wall is investigated in the current study. The artery is inclined at angle θ with horizontal, and blood is considered as Casson fluid. The mathematical model is processed into non-dimensional form and simplified using assumptions of mild stenosis. The analytical solution of mathematical equations is obtained in the elliptic bounded domain by employing the perturbation technique with Womersley frequency as a perturbation parameter and validated through case comparison with the previous study. The impacts of external acceleration, stenosis height, shape, gravitational acceleration, yield stress, and inclination angle on the flow velocity, flow rate, wall shear stress, and flow resistance are analyzed. It is found that body acceleration, gravitational acceleration, and inclination angle increase the flow rate and diminish the frictional resistance. The more significant yield stress and stenosis height enhance the flow resistance and reduce the flow rate. Moreover, fluid has higher velocity in the case of the non-symmetric shape of stenosis compared with the symmetric form.

Details

Language :
English
ISSN :
22150986
Volume :
47
Issue :
101545-
Database :
Directory of Open Access Journals
Journal :
Engineering Science and Technology, an International Journal
Publication Type :
Academic Journal
Accession number :
edsdoj.91fbcb57d34be6b74d996886b29a1e
Document Type :
article
Full Text :
https://doi.org/10.1016/j.jestch.2023.101545