Numerical Investigation of MHD Casson Nanofluid Blood Flow with Thermal Radiation in a Dilated Stenotic Artery Using Alumina and Ferric Oxide Nanoparticles
T. M. Asiru
Department of Mathematics, Emmanuel Alayande University of Education Oyo, Nigeria.
A. J. Babatunde *
Department of Mathematics, University of Ilorin, Nigeria.
S. O. Sangoniyi
Department of Mathematics, Emmanuel Alayande University of Education Oyo, Nigeria.
L. O. Adebimpe
Department of Mathematics, Emmanuel Alayande University of Education Oyo, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
This study investigates the numerical simulation of nanoparticle-enhanced non-Newtonian blood flow with internal heat generation in a dilated stenotic artery using the Casson fluid framework and analyzes the effects of different parameters on flow characteristics. The research is motivated by the need to understand the joined effects of nanoparticles, magnetic fields, and thermal radiation in stenosed arteries a topic with direct implications for targeted drug delivery and hyperthermia treatment in cardiovascular diseases.
The governing mathematical model is formulated applying the Casson fluid framework and modified to an ordinary differential equations in system form and numerically solved with the application of bvp4c solver in Maple. Graphical and tabular illustrations are used to examine key flow characteristics including velocity and temperature profiles, Nusselt number and coefficient of skin friction.
The outcomes display that velocity increases with rising curvature flow parameter, stenosis height, and nanoparticle volume fraction, whereas it drops with increasing magnetic field parameter and Casson fluid parameter. Temperature increases with Casson fluid parameter, curvature parameter, stenosis height, and magnetic field strength, but decreases with nanoparticle volume fraction, Prandtl number, and thermal radiation parameter. A slight but noticeable variation is observed between alumina (Al2O3) and ferric oxide (Fe3O4) nanoparticles with respect to the volume-fraction parameter.
The study gives valuable understanding to the behavior of nanofluid fluid flow in stenosed arteries, which may guide the development of effective therapeutic and diagnostic techniques for cardiovascular diseases, particularly in selecting appropriate nanoparticles for targeted therapy. The numerical approach using bvp4c solver proves effective for analyzing complex hemodynamic phenomena.
Keywords: Casson nanofluid, thermal radiation, dilated artery, alumina, ferric oxide, cardiovascular, magnetohydrodynamic