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Journal of Porous Media
Facteur d'impact: 1.49 Facteur d'impact sur 5 ans: 1.159 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN Imprimer: 1091-028X
ISSN En ligne: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v10.i3.40
pages 277-286

Experimental Study of Natural Convective Mass Transfer from Downward Pointing Conical Surfaces in Porous Media

Martin J. Garland
School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
S. U. Rahman
Electrochemical Research Group, Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran-31261, Kingdom of Saudi Arabia
K. A. Mahgoub
Electrochemical Research Group, Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran-31261, Saudi Arabia
Ahmad Nafees
Electrochemical Research Group, Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran-31261, Saudi Arabia

RÉSUMÉ

A new correlation for natural convective mass transfer coefficients from vertically downward pointing cones embedded in saturated porous media has been developed. The new correlation is expected to be effective in the modified Rayleigh number range 7.9 × 104 < Ral* < 7.8 × 106 and in the Darcy number range 1.088 × 10−6 < Dal < 6.050 × 10−4. The methodology adopted in this study used the limiting diffusion current technique based on cathodic reduction of cupric solution.


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