Nanofluid heat transfer in a permeable enclosure in presence of variable magnetic field by means of CVFEM

被引：78
作者：
Sheikholeslami, Mohsen [1 ]
Seyednezhad, Mohadeseh [2 ]
机构：
[1] Babol Noshirvani Univ Technol, Dept Mech Engn, Babol Sar, Iran
[2] Florida Inst Technol, Dept Mech & Aerosp Engn, Melbourne, FL 32901 USA
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2017年 / 114卷
关键词：
Nanofluid; Permeable media; External magnetic source; MFD viscosity; Natural convection; NATURAL-CONVECTION; THERMAL-RADIATION; POROUS ENCLOSURE; FORCED-CONVECTION; MESOSCOPIC SIMULATION; NUMERICAL-SIMULATION; TRANSFER ENHANCEMENT; CUO-H2O NANOFLUID; MIXED CONVECTION; LORENTZ FORCES;
D O I：
10.1016/j.ijheatmasstransfer.2017.07.018
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This research is about modeling the influence of Lorentz forces on Fe3O4-water nanofluid heat transfer enhancement in a permeable cavity. Shape factor influence on thermal conductivity of nanofluid is taken into consideration. Voracity stream function formulation is utilized. The solutions of final equations are obtained by Control Volume based Finite Element Method. Graphs are shown for different values of radiation parameter (Rd), Darcy number (Da), nanofluid volume fraction (phi), Rayleigh number (Re) and Hartmann number (Ha). Results indicate that heat transfer rate enhances with augment of Hartmann number. Selecting Platelet shaped nanoparticles leads to greatest heat transfer rate. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1169 / 1180
页数：12
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