Abstract
The current study numerically investigates the heat diffusion in the cylindrical film flow of third-grade ferroliquid. The nanolayer concept is used to analyze the effective thermal conductivity of ferrofluid in different shapes of nanoparticles. Ethylene glycol (EG)-based cobalt (Co) nano-sized particles are measured. Using hydrodynamics, Darcy-Forchheimer, Ohmic heating, and nonlinear radiation effects, an exact model was developed and resolved through the bvp5c Matlab scheme. The computational outcomes are elucidated through pictorial and tabular results. The cylindrical-shaped nanoparticles are reported to have more advanced heat relocation than the spherical-shaped nanoparticles. This proved that the nanolayer formed with the cylindrical-shaped nanoparticles' effectivity boosts the base liquid thermal conductivity. So, to enlarge the PTSC heat spread rate, suspension of Co-cylindrical nanoparticles in base liquid with third-grade rheological behavior is very helpful.