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Journal of Porous Media
Facteur d'impact: 1.49 Facteur d'impact sur 5 ans: 1.159 SJR: 0.43 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.v11.i2.50
pages 193-204

Potential Flow Past a Slightly Deformed Porous Circular Cylinder Embedded in a Porous Bed

G. P. Raja Sekhar
Department of Mathematics, Indian Institute of Technology Kharagpur, Kharagpur, 721302
Anindita Bhattacharyya
Fluvial Mechanics Laboratory, Physics and Applied Mathematics Unit, Indian Statistical Institute, Kolkata 700108, India

RÉSUMÉ

A uniform potential flow past a slightly deformed porous circular cylinder inside a porous bed is discussed. The permeabilities of the porous bed and that of the cylinder are assumed to be different. On the surface of the deformed circular cylinder, continuity of pressure and continuity of normal velocities are used. The flow inside the two porous regions is represented as a viscous potential flow with the corresponding pressures related to the seepage velocities by Darcy's law. Flow fields have been plotted for various parameters like the permeability ratios, and the deformation parameters. The effect of these parameters on the volume flow coming inside the deformed cylinder is discussed. Velocity profiles for different values of the deformation parameter and permeability ratio are discussed using graphical illustrations.


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