MHD convection and entropy generation of nanofluid in a porous enclosure with sinusoidal heating

被引：95

作者：

Malik, Sumit ^{[1
]}

Nayak, A. K. ^{[1
]}

机构：

[1] Indian Inst Technol Roorkee, Dept Math, Roorkee 247667, Uttar Pradesh, India

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2017年 / 111卷

关键词：

Cu-water nanofluid; Porous mixture; Magnetic convection; Energy flux vector; Entropy generation; Bejan number; LID-DRIVEN CAVITY; THERMAL-BOUNDARY CONDITIONS; NON-NEWTONIAN NANOFLUID; BUONGIORNOS MATHEMATICAL-MODEL; CU-WATER NANOFLUID; NATURAL-CONVECTION; MIXED CONVECTION; MAGNETIC-FIELD; VERTICAL PLATE; HYDRODYNAMIC SLIP;

D O I：

10.1016/j.ijheatmasstransfer.2017.03.123

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A numerical study of heat transfer and entropy generation of a magneto-hydrodynamic (MHD) nanofluid flow inside an enclosure filled with a fluid saturated porous medium is presented. The flow is influenced by time periodic discrete heat sources along the short side walls. A detailed physical insights of time dependent flow and heat transfer is presented based on various flow governing parameters such as Grashof number (10(4)-10(6)), Hartmann number (1-50), Darcy number (0.001-1.0) and nanoparticle volume fraction (0.0-0.20) with a fixed Prandtl number (6.2). The resulting energy flux vectors are simulated to analyze the convection generated heat transfer ratio. Entropy generation and Bejan number are used to study the performance of the system. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：329 / 345

页数：17

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