Insight into the Dynamics of Water Conveying Silver and Aluminium Oxide Nanoparticles on a Moving Cylinder Subject to Variable Surface Temperature and Lorentz Force

Abstract

MHD and variable surface temperature are examined numerically in this article to see how they affect the unsteady type natural convection flow of a hybrid nanofluid on a moving vertical cylinder. Nanoparticles of Ag and Al2O3 are considered in the water-based hybrid nanofluid. Using the Crank-Nicolson method, the equations governing flow and heat transport are unravelled. To test the present numerical approach validity, the results are matched to those found in the literature for similar problems and found to be extremely congruent with those findings. Analysis of temperature and velocity portraits, as well as Cf (skin friction coefficient) and Nux (Nusselt number) for each vital parameter, has been illustrated. This study found that by escalating the magnetic parameter, Nux and Cf of Ag–Al2O3/water can be reduced. Also, increasing Gr can be used to augment the Cf and Nux of Ag–Al2O3/water. Further, by increasing δ2, a lower skin friction coefficient and a higher Nusselt number can be achieved. The current findings are useful to the thermal flow processing of magnetic nanomaterials in the metallurgy industries and chemical engineering.