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TECHNICAL NOTES

Effect of Double Stratification on Free Convection in a Darcian Porous Medium

[+] Author and Article Information
P. V. S. N. Murthy

Department of Mathematics, Indian Institute of Technology, Kharagpur, 721 302, W.B., India

D. Srinivasacharya, P. V. S. S. S. R. Krishna

Department of Mathematics and Humanities, National Institute of Technology, Warangal, 506 004, A.P., India

J. Heat Transfer 126(2), 297-300 (May 04, 2004) (4 pages) doi:10.1115/1.1667525 History: Received July 17, 2002; Revised October 14, 2003; Online May 04, 2004
Copyright © 2004 by ASME
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References

Ludvigsen,  A., Palm,  E., and Mc Kibbin,  R., 1992, “Convective Momentum and Mass Transport in Porous Sloping Layers,” J. Geophys. Res. B, 97, pp. 12315–12325.
Gilman,  A., and Bear,  J., 1996, “The Influence of Free Convection on Soil Salinization in Arid Regions,” Transp. Porous Media, 23, pp. 275–301.
Cheng,  P., 1978, “Heat Transfer in Geothermal Systems,” Adv. Heat Transfer, 14, pp. 1–105.
Bejan,  A., and Khair,  K. R., 1985, “Heat and Mass Transfer by Natural Convection in a Porous Medium,” Int. J. Heat Mass Transfer, 28, pp. 909–918.
Lai,  F. C., and Kulacki,  F. A., 1991, “Coupled Heat and Mass Transfer by Natural Convection From Vertical Surfaces in Porous Media,” Int. J. Heat Mass Transfer, 34, pp. 1189–1194.
Trevisan,  O. V., and Bejan,  A., 1990, “Combined Heat and Mass Transfer by Natural Convection in a Porous Medium,” Adv. Heat Transfer, 28, pp. 315–352.
Nield, D. A., and Bejan, A., 1999, Convection in Porous Media, Springer-Verlag, New York.
Bejan, A., 1984, Convection Heat Transfer, John-Wiley & Sons, New-York, Chpt. 10.
Singh,  P., and Sharma,  K., 1990, “Integral Method for Free Convection in Thermally Stratified Porous Medium,” Acta Mech. 83, pp. 157–163.
Kalpana,  T., and Singh,  P., 1992, “Natural Convection in a Thermally Stratified Fluid Saturated Porous Medium,” Int. J. Eng. Sci., 30, pp. 1003–1007.
Nakayama,  A., and Koyama,  H., 1987, “Effect of Thermal Stratification on Free Convection With a Porous Medium,” AAIA J. Thermophys. Heat Transfer, 1, pp. 282–285.
Lai,  F. C., Pop,  I., and Kulacki,  F. A., 1990, “Natural Convection from Isothermal Plates in Thermally Stratified Porous Media,” AAIA J. Thermophys. Heat Transfer, 4, pp. 533–535.
Takhar,  H. S., and Pop,  I., 1987, “Free Convection From a Vertical Flat Plate to a Thermally Stratified Darcian Fluid,” Mechanics Research Communications, 14, pp. 81–86.

Figures

Grahic Jump Location
Schematic drawing of the problem
Grahic Jump Location
Variation of temperature with η for different values of ε1 when N=1 and ε2=0.3
Grahic Jump Location
Variation of concentration with η for different values of ε2 when N=1
Grahic Jump Location
Variation of temperature with η when Le=1
Grahic Jump Location
Variation of concentration with η for different values of ε2, when Le=1

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