Entropy generation minimization of nanofluid flow in a MHD channel considering thermal radiation effect

被引：12
|
作者：
Matin, M. Habibi [1 ]
Hosseini, R. [2 ]
Simiari, M. [2 ]
Jahangiri, P. [3 ]
机构：
[1] Kermanshah Univ Technol, Dept Mech Engn, Kermanshah 6717863766, Iran
[2] Amirkabir Univ Technol, Tehran Polytech, Sch Mech Engn, Tehran 158754413, Iran
[3] Univ British Columbia, Dept Mech Engn, Vancouver, BC V6T 1W5, Canada
来源：
MECHANIKA | 2013年 / 04期
关键词：
Entropy generation; channel; Minimization; Nanofluid; MHD; MAGNETOHYDRODYNAMIC FLOW; 2ND-LAW ANALYSIS;
D O I：
10.5755/j01.mech.19.4.5050
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The purpose of this article is the total entropy generation minimization of the nanofluid magneto-hydrodynamic (MHD) flow through a channel formed by two parallel isothermal plates considering thermal radiation effect. Air is the main fluid and three types of nanoparticles such as Al2O3, Ti and Cu are examined. The velocity and temperature fields are obtained from solution of the momentum and energy equations analytically. The local and total entropy generation rates are calculated and then the total entropy generation rate is presented graphically versus governing dimensionless parameters. Electrical efficiency, radiation parameter, nanoparticles volume fraction, Hartman and Peclet numbers are considered in this work. The results show that there are conditions in which the total entropy generation rate could be optimized.
引用
收藏
页码：445 / 450
页数：6
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