期刊
PHYSICS LETTERS A
卷 382, 期 38, 页码 2749-2753出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2018.06.026
关键词
Nanofluid; Porous medium; Convective transfer; Wavy surface
In this letter, water base nanofluid flow over wavy surface in a porous medium of spherical packing beds is investigated. The copper oxides particles are taken into account. These properties are rehabilitated when fluid interacts with porous walls. For porous medium, Dupuit-Forchheimer model; an extension of Darcy's law model is utilized. The natures of velocity and temperature profiles of nanofluid are discussed graphically whereas the values of convection heat transfer coefficient in the presence of different nanoparticles concentrations in porous medium is presented in tabular form. The obtained results illustrate that convection heat transfer is improved by nanoparticles concentration but reduces when fluid attract to pores structured medium. On the other hand, when particles are added in fluid, convection heat transfer rate is improved but flow velocity is declined. (C) 2018 Elsevier B.V. All rights reserved.
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