MHD transient flows in a channel of rectangular cross-section with porous medium

被引：38

作者：

Khan, M. ^{[1
]}

Fetecau, C. ^{[1
]}

Hayat, T. ^{[1
]}

机构：

[1] Quaid I Azam Univ 45320, Dept Math, Islamabad 44000, Pakistan

来源：

PHYSICS LETTERS A | 2007年 / 369卷 / 1-2期

关键词：

magnetohydrodynamic (MHD) flow; porous medium; modified Darcy's law; analytic solutions;

D O I：

10.1016/j.physleta.2007.04.076

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This Letter analyzes the influence of Hartman number on the flows of an Oldroyd-B fluid in a porous medium. The flow modelling is based on the modified Darcy's law. Exact analytic solutions are obtained for the velocity, volume flux and tangential stresses. The obtained solutions satisfy all the conditions and governing equations. These solutions are found to be significantly affected by the applied magnetic field, material parameters of fluid, porosity and permeability of the medium. Comparison of the present solutions is also made with the existing results. Finally, the graphs are plotted for the variations of emerging parameters and discussed. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：44 / 54

页数：11

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