Haemodynamics Behaviour in Normal and Stenosed Renal Artery using Computational Fluid Dynamics

Shah Mohammed Abdul Khader; Adi Azriff; Cherian Johny; Raghuvir Pai; Mohammad Zuber; Kamarul Arifin Ahmad; Zanuldin Ahmad

Authors

Shah Mohammed Abdul Khader Department of Mechanical Engineering, School of Science and Engineering, Manipal International University, Malaysia, 71800, Nilai, Negeri Sembilan, Malaysia
Adi Azriff Department of Mechanical Engineering, School of Science and Engineering, Manipal International University, Malaysia, 71800, Nilai, Negeri Sembilan, Malaysia
Cherian Johny Department of Mechanical and Manfacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
Raghuvir Pai Department of Mechanical and Manfacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
Mohammad Zuber Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
Kamarul Arifin Ahmad Aerospace Engineering Department, Faculty of Engineering, Universiti Putra Malaysia, 43499 Selangor, Malaysia
Zanuldin Ahmad Department of Mechanical Engineering, School of Science and Engineering, Manipal International University, Malaysia, 71800, Nilai, Negeri Sembilan, Malaysia

Keywords:

Haemodynamics, renal artery, exercise and resting condition, Atherosclerosis

Abstract

Atherosclerosis is a condition of plaque/fatty deposit on the walls of the artery resulting in obstruction to blood flow. Several researchers have studied the hemodynamic behaviour on patient-specific models. The aim of present study is to investigate the hemodynamic behaviour 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. Further, two more 3D models are generated by including stenosis in one renal branch and both renal branches separately. The investigation is focused on haemodynamics parameters such as flow field, pressure and Wall Shear Stress (WSS). The flow variables are monitored throughout pulsatile flow subjected to both resting and exercise cases. The obtained results from this fundamental study agree well with the available literature and can be useful for further studies.