Electro Viscous and Cattaneo-Christov Heat Flux Impact on Hybrid Nanofluid Flow Over a Rotating Disk

Abstract

This study investigates the dynamic properties of a Casson hybrid nanofluid flow over a rotating disk, emphasizing the influences of Electroviscous forces and Cattaneo-Christov heat flux. The nanofluid comprises Silver (Ag) nanoparticles and Multi-Walled Carbon Nanotubes (MWCNTs) dispersed in a water base fluid, chosen for their superior thermal properties and stability. A comprehensive mathematical model, comprised of Partial Differential Equations (PDEs) transformed into Ordinary Differential Equations (ODEs) through a similarity transformation method, is developed to explore this complex phenomenon. The analysis combines multiple variables including magnetic fields, viscous dissipation, Joule heating, and radiative as well as convective effects. The findings reveal significant impacts on skin friction, fluid flow characteristics, and heat transfer behavior due to the synergistic effects of the considered parameters. The study’s novelty lies in its detailed examination of Electroviscous effects within a rotating disk setup, extending beyond traditional analyses by integrating the specific thermal and viscous properties of Silver and MWCNT nanoparticles. This approach offers new insights into optimizing heat transfer applications in industrial processes, particularly in high-speed rotational systems.