Numerical Study of Haemodynamics in Abdominal Aorta with Renal Branches Using Fluid – Structure Interaction under Rest and Exercise Conditions

Azriff, Adi and Johny, Cherin and Khader, Abdul S M and Pai, Raghuvir B and Zuber, Mohammad and Ahmed, Rounaq (2018) Numerical Study of Haemodynamics in Abdominal Aorta with Renal Branches Using Fluid – Structure Interaction under Rest and Exercise Conditions. International Journal of Recent Technology and Engineering, 7 (4S2). pp. 2277-3878. ISSN 2277-3878

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Abstract

Computational simulations studying the complex interaction of blood flow through elastic arteries has demonstrated the haemodynamics of cardiovascular diseases such as atherosclerosis. The aim of present study is to investigate the hemodynamic behavior in 3D models of an idealistic abdominal aorta with renal branches based on (Computed Tomography) CT image. A new technique is used to develop the idealistic model from the single slice. 3D abdominal aorta model with renal branches is generated using ANSYS Design modeler and numerical analysis is performed using FSI solver in ANSYS-17. The blood flow is assumed to be incompressible, homogenous and Newtonian, while artery wall is assumed to behave linearly elastic. The two-way sequentially coupled transient FSI analysis is performed using FSI solver for three pulse cycles. The investigation is focused on haemodynamic parameters such as flow velocity, Wall Shear Stress (WSS), pressure contours, arterial wall deformation and von-Mises stress are studied at the bifurcation and critical zones. The flow variables are monitored throughout pulsatile flow subjected to both resting and exercise cases which is indicated through results obtained. This preliminary study shall be useful to carry out FSI simulation in patient specific cases

Item Type: Article
Uncontrolled Keywords: Renal Artery, ANSYS FSI, Exercise and Resting Condition, Normal and High Blood Pressure
Subjects: Engineering > MIT Manipal > Aeronautical and Automobile
Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 21 Aug 2020 09:20
Last Modified: 21 Aug 2020 09:20
URI: http://eprints.manipal.edu/id/eprint/155572

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