Thermal Analysis of MHD Hybrid Nanofluids in Biomedical Flow with Radiation Effects

This study presents a comprehensive investigation into the magnetohydrodynamic (MHD) flow of hybrid Casson nanofluids, specifically gold–silver nanoparticles suspended in blood, past a stretchable surface under the combined influence of thermal radiation and chemical reactions. Such a configuration holds significance in biomedical applications, particularly in targeted drug delivery and hyperthermia treatment. The governing partial differential equations (PDEs) describing the flow, heat, and mass transfer were transformed into a system of ordinary differential equations (ODEs) using similarity transformations. These were then solved numerically using the Runge-Kutta method with a shooting technique. The results demonstrate that hybrid nanoparticles significantly enhance thermal conductivity and radiative heat transfer compared to conventional single-phase nanofluids. Additionally, increasing the magnetic field intensity was found to reduce fluid velocity due to the Lorentz force. The findings were validated through comparison with existing results in the literature, showing excellent agreement.