Effect of Single and Double Stenosed on Renal Arteries of Abdominal Aorta: A Computational Fluid Dynamics

Adi Azriff  Basri; S.M.  Abdul Khader; Cherian  Johny; Raghuvir  Pai B; Mohammed  Zuber; Zainuldin  Ahmad; Kamarul Arifin  Ahmad

Authors

Adi Azriff Basri Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
S.M. Abdul Khader Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
Cherian Johny Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
Raghuvir Pai B Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
Mohammed Zuber Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
Zainuldin Ahmad Department of Mechanical Engineering, School of Science and Engineering, Manipal International University, Malaysia, 71800, Nilai, Negeri Sembilan, Malaysia
Kamarul Arifin Ahmad Aerospace Malaysia Rasearch Center (AMRC), Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia

Keywords:

renal artery, renal artery stenosed, atherosclerosis, computational fluid dynamics, hemodynamics

Abstract

This study investigated the impact of single stenosed (SS) and double stenosed (DS) of renal artery branches using the Computational Fluid Dynamics (CFD) approach. A 3D abdominal aorta with renal artery branches model was constructed using MIMICS software. Some modification of SS and DS are applied at right and left renal artery branches, respectively. Numerical analysis of both stenosed cases with the condition of normal blood pressure (NBP) and high blood pressure (HBP) are performed using CFD solver in software ANSYS-18. The results of velocity, pressure and wall shear stress of SS and DS renal artery branches with the condition of NBP and HBP are compared with respect to the blood flow behavior. The results concluded that DS-NBP showed the highest value for velocity magnitude. Meanwhile for pressure and wall shear stress value, DS-HBP showed the highest value for both results, respectively. The present study demonstrates the fundamental aspects of haemodynamics of blood flow behavior in idealized abdominal aorta with stenosed renal branches subjected to the normal and high pressure conditions of DS and SS cases of renal artery branches.