Second Law Analysis of Viscoelastic Fluid over a Stretching Sheet Subject to a Transverse Magnetic Field with Heat and Mass Transfer

被引：39

作者：

Aiboud, Soraya ^{[2
]}

Saouli, Salah ^{[1
]}

机构：

[1] Univ Kasdi Merbah, Dept Proc Engn, Fac Sci & Technol & Matters Sci, Ouargla 30000, Algeria

[2] Univ Kasdi Merbah, Dept Mech Engn, Fac Sci & Technol & Matters Sci, Ouargla 30000, Algeria

来源：

ENTROPY | 2010年 / 12卷 / 08期

关键词：

heat transfer; magnetic field; mass transfer; second law; stretching surface; viscoelastic fluid; CONSTANT WALL TEMPERATURE; BOUNDARY-LAYER-FLOW; 2ND-LAW ANALYSIS; VISCOUS DISSIPATION; ENTROPY GENERATION; MIXED CONVECTION; CHANNEL; SURFACE; PLATE;

D O I：

10.3390/e12081867

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This paper concerns the second law analysis of a viscoelastic fluid over a stretching sheet subject to a transverse magnetic field with heat and mass transfer. The velocity, temperature and concentration profiles are obtained analytically using Kummer's functions. The effects of the magnetic and viscoelastic parameters on both the longitudianl and the transverse velocities are investigated. The influence of Prandt number, the magnetic parameter and the heat source/sink parameter on the temperature is analysed. The concentration and its variations with the Schmidt number and the magnetic parameter is presented as well. The velocity, the temperature and the concentration profiles are used to compute the entropy generation number. This number is graphed and studied as function of the magnetic parameter, the Prandtl number, The Schmidt number, the Reynolds number, the dimensionless group, the Hartmann number, the ratio of the dimensionless concentration difference to the dimensionless temperature difference and the constant parameter.

引用

页码：1867 / 1884

页数：18

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