Free convective heat and mass transfer from a vertical surface embedded in a doubly stratified non-Darcy porous medium has been analyzed. The wall temperature and concentration are constant and the medium is linearly stratified in the vertical direction with respect to both temperature, and concentration. A series approximation is made for stream function, temperature, and concentration in terms of the stratification parameter. The flow, temperature, and concentration fields are affected by the complex interactions among the diffusion ratio Le, buoyancy ratio and stratification ratio Sr in addition to the inertia parameter . The effect of double stratification of the medium on nondimensional heat and mass transfer coefficients is discussed.
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November 2006
This article was originally published in
Journal of Heat Transfer
Technical Briefs
Free Convective Heat and Mass Transfer in a Doubly Stratified Non-Darcy Porous Medium
P. A. Lakshmi Narayana,
P. A. Lakshmi Narayana
Department of Mathematics,
Inidan Institute of Technology
, Kharagpur, Kharagpur, 721 302, W.B., India
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P. V. S. N. Murthy
P. V. S. N. Murthy
Department of Mathematics,
e-mail: pvsnm@iitkgp.ac.in
Inidan Institute of Technology
, Kharagpur, Kharagpur, 721 302, W.B., India
Search for other works by this author on:
P. A. Lakshmi Narayana
Department of Mathematics,
Inidan Institute of Technology
, Kharagpur, Kharagpur, 721 302, W.B., India
P. V. S. N. Murthy
Department of Mathematics,
Inidan Institute of Technology
, Kharagpur, Kharagpur, 721 302, W.B., Indiae-mail: pvsnm@iitkgp.ac.in
J. Heat Transfer. Nov 2006, 128(11): 1204-1212 (9 pages)
Published Online: June 7, 2006
Article history
Received:
June 7, 2005
Revised:
June 7, 2006
Citation
Lakshmi Narayana, P. A., and Murthy, P. V. S. N. (June 7, 2006). "Free Convective Heat and Mass Transfer in a Doubly Stratified Non-Darcy Porous Medium." ASME. J. Heat Transfer. November 2006; 128(11): 1204–1212. https://doi.org/10.1115/1.2352788
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