Forced convection of nanofluid in presence of constant magnetic field considering shape effects of nanoparticles

被引：272
作者：
Sheikholeslami, M. [1 ]
Bhatti, M. M. [2 ]
机构：
[1] Babol Noshirvani Univ Technol, Dept Mech Engn, Babol Sar, Iran
[2] Shanghai Univ, Shanghai Inst Appl Math & Mech, Shanghai 200072, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2017年 / 111卷
关键词：
Shape of nanoparticle; Forced convection; Nanofluid; Porous media; Magnetic field; CVFEM; HEAT-TRANSFER ENHANCEMENT; BOUNDARY-LAYER-FLOW; MHD FREE-CONVECTION; NATURAL-CONVECTION; THERMAL-RADIATION; STRETCHING SHEET; NUMERICAL-SIMULATION; SUSPENDED NANOFLUID; ENTROPY GENERATION; LORENTZ FORCES;
D O I：
10.1016/j.ijheatmasstransfer.2017.04.070
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Nanofluid forced convective heat transfer in a porous semi-annulus is studied in presence of uniform magnetic field. Various shapes of nanoparticles are considered. Brownian motion impact on viscosity of nanofluid is taken into account. Governing equations are presented in vorticity stream function formulation. Control volume based finite element method (CVFEM) is utilized to obtain the results. At first, the best shape of nanoparticles is selected and then influences of nanofluid volume fraction, Darcy, Reynolds and Hartmann numbers are presented. Results showed that velocity of nanofluid enhances with increase of Darcy and Reynolds numbers. Platelet shape has the highest rate of heat transfer. Nusselt number enhances with increase of nanofluid volume fraction, Darcy, and Reynolds number while it reduces with increase of Lorentz forces. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1039 / 1049
页数：11
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