The Effect of Inlet Flow Profile, Carotid Bulb Diameter and Non Newtonian Blood Viscosity on the Wall Shear Stress in a Carotid Artery Bifurcation Model for Transient Flow
Journal Title: International Journal of Mechanical and Production Engineering Research and Development (IJMPERD ) - Year 2019, Vol 9, Issue 5
Abstract
The carotid artery begins at the aorta within the chest and courses up through the neck to the head. The most common site of atherosclerotic plaque development is at the carotid bifurcation. The size, shape and location of the carotid bulbs are unique to each person. The individual geometry of each person’s carotid artery has different flow features and the possibility of atherogenesis. In this work, the effect of inlet flow profile and variations in the carotid bulb sizes and the non-Newtonian viscosity behavior of blood on Wall Shear Stress have been studied by using Ansys Fluent 15. The simulation studies have shown that Wall Shear Stress is reduced with the increase in carotid bulb diameter. Also, the value of Wall Shear Stress decreases remarkably when the nature of the inlet velocity profile changes. What is observed is that when the blood is considered Newtonian (in terms of viscosity) and if the velocity profile is parabolic, there are more chances of atherosclerotic plaque formation there.
Authors and Affiliations
K. V Narasimha Rao, Meduri Sitaram, Naveen Janjanam
Keywords
Related Articles
- EP ID EP672231
- DOI 10.24247/ijmperdoct201950
- Views 118
- Downloads 0
Design and Simulation of Spot Welding Process
The presented work confirmed that the use of resistance spot welding process in industry can be considered as one of the widely processes applied for sheet joining purposes. Finite element modelling technique is an effic...
Effective Time Domain Features for Identification of Bearing Fault using LDA and NB Classifiers
Recently, the mechanical fault detection of an induction motor (IM) from vibration signals using pattern recognition has proven to be an effective method. This paper has studied for the first time statistical time domain...
The Pallet Conveyor System Application in the Industrial Lines A New Design System with Improvement of Productivity
The design and operation of a high volume conveyor sortation system are important due to its high cost, large footprint and critical role in the system. In this thesis, we study the characteristics of the conveyor sortat...
COMPUTATIONAL AERODYNAMIC PERFORMANCE STUDY OF A MODERN BLENDED WING BODY AIRPLANE CONFIGURATION
In the present commercial air transport scenario, efficient, economically and attractive configurations are urgently needed. Studies have shown remarkable performance improvements for the Blended-Wing-Body (BWB) over con...
Optimisation of Process Parameters in Water Jet Peening on AA6063 Aluminium Alloy by Response Surface Methodology
Water Jet Peening (WJP) is a modern non-traditional surface treatment process which is used to improve the surface integrity of a material. In this study Aluminium Alloy (AA 6063) is subjected to Water jet peening surfac...