Journal
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume 118, Issue -, Pages 823-831Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2017.11.041
Keywords
Nanofluid; Coulomb force; Porous media; Shape factor; Radiation heat transfer; CVFEM
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Influence of thermal radiation and external electric field on Fe3O4-Ethylene glycol nanofluid hydrothermal treatment is presented in this article. The lid driven cavity is porous media and the bottom wall is selected as positive electrode. Influence of supplied voltage on viscosity of nanofluid is taken into account. Control Volume based Finite Element Method is utilized to estimate the roles of radiation parameter (Rd), Darcy number (Da), Reynolds number (Re), nanofluid volume fraction (phi) and supplied voltage (Delta phi). Results indicate that shape of nanoparticles can change the flow style and maximum rate of heat transfer is obtained by selecting platelet shape nanoparticles. The convective heat transfer improves with augment of permeability and Coulomb force. (C) 2017 Elsevier Ltd. All rights reserved.
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