Computational Fluid Dynamic Study on effect of Carreau Yasuda and Newtonian Blood viscosity models on Hemodynamic Parameters

Kumar, Nitesh and Khader, Abdul S M and Pai, Raghuvir B and Kyriacou, P A and Khan, S H and Prakashini, K (2017) Computational Fluid Dynamic Study on effect of Carreau Yasuda and Newtonian Blood viscosity models on Hemodynamic Parameters. In: International Conference on Computational methods in engineering and health sciences (ICCMEH), 19/12/2014, MIT, MANIPAL.

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Abstract

Pulsatile blood flow through human carotid artery is studied using Computational Fluid Dynamics (CFD) to investigate the effect of blood rheology on the hemodynamic parameters. The carotid artery model is segmented and reconstructed from the Magnetic Resonance Images (MRI) of a specific patient. The results of non-Newtonian (Carreau-Yasuda) model and Newtonian model are studied and compared. The results are plotted at peak systole. It is observed that there is significant variation in the spatial parameters between the two models considered in the study. Comparison of local shear stress magnitude in different branches namely Common Carotid Artery (CCA), Internal Carotid Artery (ICA) and External Carotid Artery (ECA) show that the shear thinning property of blood influences the Wall Shear Stress (WSS) variation. This is observed in in branches where there is reduction in diameter and where the diameter reduces due to plaque deposition and also in the region where there is flow recirculation like carotid sinus

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Carotid artery, Newtonian and Carreau – Yasuda, Wall shear stress
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 11 Jan 2018 04:40
Last Modified: 11 Jan 2018 04:40
URI: http://eprints.manipal.edu/id/eprint/147763

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