Convective heat transfer flow of nanofluid in a porous medium over wavy surface

被引：206

作者：

Hassan, M. ^{[1
]}

Marin, M. ^{[2
]}

Alsharif, Abdullah ^{[3
]}

Ellahi, R. ^{[4
,5
]}

机构：

[1] COMSATS Univ Islamabad, Dept Math, Lahore Campus, Lahore, Pakistan

[2] Transilvania Univ Brasov, Dept Math & Comp Sci, Brasov, Romania

[3] Taif Univ, Dept Math, At Taif, Saudi Arabia

[4] IIUI, Dept Math & Stat, Islamabad, Pakistan

[5] UCR, Dept Mech Engn, Riverside, CA USA

来源：

PHYSICS LETTERS A | 2018年 / 382卷 / 38期

关键词：

Nanofluid; Porous medium; Convective transfer; Wavy surface; NONLINEAR THERMAL-RADIATION; NATURAL-CONVECTION; NUMERICAL-SIMULATION; SENSITIVITY-ANALYSIS; ENTROPY GENERATION; HYBRID NANOFLUIDS; BLOOD-FLOW; FLUID-FLOW; NANOPARTICLES; ENERGY;

D O I：

10.1016/j.physleta.2018.06.026

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页码：2749 / 2753

页数：5

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