Magnetohydrodynamic and Convective Heating Analysis of Chemically Active Iron Oxide and Gold Nanoparticles Based Hybrid Blood Flow Over a Radiated Sheet

Computational insights into the role of magnetized bio-nanofluids, specifically involving gold (Au) and iron oxide (Fe₃O₄) nanoparticles is crucial in bionanoscience. They have several prominent advantages in hemodynamics and are used widely in hyperthermia treatment, advanced drug delivery, and many diagnostics purposes. The study delves into the intricate mathematical modelling and numerical investigation of bio-nanofluid past over a convectively radiative heated permeable surface. The research primarily focalized the thermal transport mechanism in a hybrid nanofluids under the impact of some key influential facts such as convective heating, magnetic field orientation, infinite shear rate, and space-dependent heat source. For physiological attention, the synthesized fluid (blood) containing gold (Au), and iron oxide (Fe₃O₄) is taken into consideration. The flow mechanism is structured through Carreau modelling along with fluid flow governing equations such as the Navier–Stokes relation, heat and concentration equations. The assembled equations are altered into ordinary differential systems (ODEs) by introducing similarity variables for numerical treatment. A robust computation framework MATLAB (bvp4c) is used to tackle the first order nonlinear system of equations. The effect of emerging parameters is analysed for velocity, energy, and concentration profiles. The magnetic field strength intensified the temperature and velocity profile in both Au/blood and Au-Fe₃O₄/blood. The velocity field is enhanced with angle orientation, whereas the converse behaviour is noted for temperature distribution. The Nusselt number showed an increasing trend with positive variation with heat source and radiation parameter, while the Skin fraction demonstrated similar conduct for the Wassenberg number and magnetic parameter. The results provide sufficient information, which contributes to the growth of bio-nanofluid dynamics with several implications for medical sciences.