Influence of Variable Viscosity and Prandtl Number on Mhd Unsteady Natural Convection on a Thin Vertical Cylinder

Abstract

This present work explores the effect of variable viscosity and Prandtl number on unsteady free convection of methanol flow over a thin vertical cylinder with magnetic field. The governing flow equations of the flow are transformed into dimensionless partial differential equations using non-similar transformations. The converted equations are resolved by employing implicit finite difference scheme and quasilinearization technique. To see  a better perception of the problem, the numerical solutions so obtained are analysed graphically, thereby examining the impact of variable viscosity and Prandtl number on friction drag and heat transfer parameters. We also examined the impact of physical parameters like unsteady, magnetic, and stream-wise coordinate on friction drag, heat transfer, temperature and velocity profile.