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 , and Lewis number Le and buoyancy ratio . In both aiding and opposing buoyancies, and 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.
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Soret and Dufour Effects in a Non-Darcy Porous Medium
M. K. Partha,
M. K. Partha
Department of Mathematics,
Indian Institute of Technology
, Kharagpur, 721 302, West Bengal, India
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P. V. S. N. Murthy,
P. V. S. N. Murthy
Department of Mathematics,
e-mail: pvsnm@maths.iitkgp.ernet.in
Indian Institute of Technology
, Kharagpur, 721 302, West Bengal, India
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G. P. Raja Sekhar
G. P. Raja Sekhar
Department of Mathematics,
Indian Institute of Technology
, Kharagpur, 721 302, West Bengal, India
Search for other works by this author on:
M. K. Partha
Department of Mathematics,
Indian Institute of Technology
, Kharagpur, 721 302, West Bengal, India
P. V. S. N. Murthy
Department of Mathematics,
Indian Institute of Technology
, Kharagpur, 721 302, West Bengal, Indiae-mail: pvsnm@maths.iitkgp.ernet.in
G. P. Raja Sekhar
Department of Mathematics,
Indian Institute of Technology
, Kharagpur, 721 302, West Bengal, IndiaJ. Heat Transfer. Jun 2006, 128(6): 605-610 (6 pages)
Published Online: December 11, 2005
Article history
Received:
December 31, 2004
Revised:
December 11, 2005
Citation
Partha, M. K., Murthy, P. V. S. N., and Raja Sekhar, G. P. (December 11, 2005). "Soret and Dufour Effects in a Non-Darcy Porous Medium." ASME. J. Heat Transfer. June 2006; 128(6): 605–610. https://doi.org/10.1115/1.2188512
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