Fe3O4-Ethylene glycol nanofluid forced convection inside a porous enclosure in existence of Coulomb force

被引：74
|
作者：
Sheikholeslami, M. [1 ]
Shamlooei, M. [1 ]
Moradi, R. [2 ]
机构：
[1] Babol Noshirvani Univ Technol, Dept Mech Engn, Babol Sar, Iran
[2] Khazar Univ, Sch Engn & Appl Sci, Dept Chem Engn, Baku, Azerbaijan
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2018年 / 249卷
关键词：
Electrohydrodynamic; Nanofluid; Thermal radiation; Porous medium; Shape of nanoparticles; CVFEM; HEAT-TRANSFER ENHANCEMENT; BOLTZMANN METHOD SIMULATION; MHD NATURAL-CONVECTION; MAGNETIC-FIELD; THERMAL-RADIATION; LORENTZ FORCES; HALL CURRENT; MEDIUM LAYER; CAVITY; ONSET;
D O I：
10.1016/j.molliq.2017.11.048
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this article, impact of shape factor on nanofluid forced convection in existence of electric field is simulated via Control Volume based Finite Element Method. Effect of thermal radiation on energy equation is taken into account. The porous enclosure is filled with Fe3O4-Ethylene glycol nanofluid. Viscosity of nanofluid is varied with electric field. The bottom wall is considered as positive electrode. Numerical method is employed to find the roles of Reynolds number (Re), Darcy number (Da), radiation parameter (Rd), nanofluid volume fraction (phi) and supplied voltage (Delta phi). Results proved that Nusselt number augments with augment of thermal radiation. Thermal boundary layer thickness decreases with increase of Darcy number and Coulomb force. (C) 2017 Elsevier B.V. All rights reserved.
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页码：429 / 437
页数：9
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