Influence of electric field on Fe3O4- water nanofluid radiative and convective heat transfer in a permeable enclosure

In this article, Fe3O4- water nanofluid EHD forced convection is investigated. Different shapes of nanoparticles are considered. The porous enclosure has one moving wall which is considered as positive electrode. Control Volume based Finite Element Method is employed to simulate this problem. Outputs show the roles of Reynolds number (Re), Fe3O4- H2O nanofluid volume fraction (ϕ), Darcy number (Da), radiation parameter (Rd) and supplied voltage (Δφ). Results demonstrate that temperature gradient is an enhancing function of Coulomb force and permeability. Maximum values for temperature gradient is obtained for platelet shape nanoparticles.