Numerical Study of Haemodynamics in Abdominal Aorta with Renal Branches Using Fluid – Structure Interaction under Rest and Exercise Conditions
Adi Azriff1, Cherian Johny2, S.M. Abdul Khader3, Raghuvir Pai B4, M. Zuber5, K.A. Ahmed6, Zanuldin Ahmad7
1Adi Azriff, Department of Mechanical Engineering, School of Science and Engineering, Manipal International University, Nilai, Malaysia.
2S.M. Abdul Khader, Department of Mechanical Engineering, School of Science and Engineering, Manipal International University, Nilai, Malaysia.
3Zanuldin Ahmad, Department of Mechanical Engineering, School of Science and Engineering, Manipal International University, Nilai, Malaysia.
4Raghuvir Pai B., Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, India
5M. Zuber, Department of Automobile and Aeronautical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, India
6K.A. Ahmed, Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, Selangor, Malaysia.
7Cherian Johny, Department of Mechanical Engineering, School of Science and Engineering, Manipal International University, Nilai, Malaysia.
Manuscript received on 13 December 2018 | Revised Manuscript received on 25 December 2018 | Manuscript Published on 24 January 2019 | PP: 23-27 | Volume-7 Issue-4S2 December 2018 | Retrieval Number: ES2084017519/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
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.
Keywords: Renal Artery, ANSYS FSI, Exercise and Resting Condition, Normal and High Blood Pressure.
Scope of the Article: Fluid Mechanics