Computational Modeling of Casson Blood Flow in Symmetrically Stenosed Carotid Arteries Based on Finite Volume Scheme
Year: 2025
Type: article
Abstract: Carotid atherosclerosis is a major contributor to cardiovascular morbidity and mortality, primarily due to plaque-induced arterial steno-sis. This study develops a patient-specific computational model of Casson blood flow in symmetrically stenosed carotid arteries using a finite volume method. Realistic artery geometries are reconstructed from MRI and CT imaging. The model indicates a significant pressure drop (from approxi-mately 917 Pa to -411 Pa) and an increase in blood velocity, peaking at 1.5 m/s within the stenosed region. Temperature gradients are noted along ar-terial walls due to frictional heating. The model is quantitatively validated with reference data and clinically confirmed by MRI diagnostics. The main findings of computational results further show that wall shear stress increases with stenosis severity, and recirculation zones intensify near the stenosis throat, potentially promoting plaque buildup. The Casson fluid model captures the non-Newtonian nature of blood effectively, while the finite volume scheme ensures stable and accurate numerical predictions. These insights advance the understanding of hemodynamic behavior in stenosed arteries and may aid in personalized treatment planning.
Authors: Abdul Wahab, Muhammad Imran Asjad, Kubra Anjum, Saraj Khan
Language: English
Subfield: Pulmonary and Respiratory Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: bronze
OpenAlex ID: W4413064095