Abstract Electrohydrodynamic Fe3O4-Ethylene glycol nanofluid radiative and free convective heat transfer is reported in a porous media. Influences of nanoparticles, shape and supplied voltage on properties of nanofluid are taken… Click to show full abstract
Abstract Electrohydrodynamic Fe3O4-Ethylene glycol nanofluid radiative and free convective heat transfer is reported in a porous media. Influences of nanoparticles, shape and supplied voltage on properties of nanofluid are taken into account. The hot surface is considered as positive electrode. Control Volume based Finite Element Method is employed to show the roles of radiation parameter, Darcy number (Rd)(Da), Rayleigh number (Ra), nanofluid volume fraction (ϕ) and supplied voltage (Δφ). Results indicate that Nusselt number is an enhancing function of Coulomb forces and permeability of porous media. In order to find highest heat transfer rate, Platelet shape nanoparticles should be selected.
               
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