0
TECHNICAL BRIEFS

Soret and Dufour Effects in a Non-Darcy Porous Medium

[+] Author and Article Information
M. K. Partha, G. P. Raja Sekhar

Department of Mathematics, Indian Institute of Technology, Kharagpur, 721 302, West Bengal, India

P. V. S. N. Murthy1

Department of Mathematics, Indian Institute of Technology, Kharagpur, 721 302, West Bengal, Indiapvsnm@maths.iitkgp.ernet.in

1

Corresponding author.

J. Heat Transfer 128(6), 605-610 (Dec 11, 2005) (6 pages) doi:10.1115/1.2188512 History: Received December 31, 2004; Revised December 11, 2005

The effect of double dispersion on free convection heat and mass transfer from a vertical surface embedded in a non-Darcy electrically conducting fluid saturated porous medium with Soret and Dufour effects is studied using similarity solution technique. The heat and mass transfer coefficients are effected greatly due to these secondary effects and also due to the complex interaction among the dispersion parameters Raγ,Raξ, and Lewis number Le and buoyancy ratio N. In both aiding and opposing buoyancies, Df and Sr have significant influence on the Nusselt and Sherwood numbers in the presence and absence of thermal and solutal dispersion in the medium. It is also observed that the magnetic field parameter lowered heat and mass transfer coefficients. The results are presented through comparison tables and plots.

FIGURES IN THIS ARTICLE
<>
Copyright © 2006 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Dispersion effects on nondimensional heat transfer coefficient with the increase of Le for fixed values of Df, Sr in Darcy and non-Darcy porous medium

Grahic Jump Location
Figure 2

Dispersion effects on nondimensional mass transfer coefficient with the increase of Le for fixed values of Df, Sr in Darcy and non-Darcy porous medium

Grahic Jump Location
Figure 3

Variation of nondimensional heat transfer coefficient to Darcy and non-Darcy porous medium with the increase of Raγ in the presence of magnetic field

Grahic Jump Location
Figure 4

Variation of nondimensional mass transfer coefficient to Darcy and non-Darcy porous medium with the increase of Raξ in the presence of magnetic field

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In