Improved thermal conductivity of hydrodynamic third‐grade ferrofluid using nanolayer concept: A PTSC application

Abstract

AbstractThe 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.