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Journal of Porous Media
Fator do impacto: 1.752 FI de cinco anos: 1.487 SJR: 0.43 SNIP: 0.762 CiteScore™: 2.3

ISSN Imprimir: 1091-028X
ISSN On-line: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v19.i8.20
pages 669-686

SORET AND DUFOUR EFFECTS ON MHD NATURAL CONVECTIVE HEAT AND SOLUTE TRANSFER IN A FLUID-SATURATED POROUS CAVITY

Balla Chandra Shekar
Department of Mathematics, Osmania University, Hyderabad, Telangana State, India
Naikoti Kishan
Osmania University, Hyderabad, India
Ali J. Chamkha
Mechanical Engineering Department, Prince Sultan Endowment for Energy and Environment, Prince Mohammad Bin Fahd University, Al-Khobar 31952, Saudi Arabia; RAK Research and Innovation Center, American University of Ras Al Khaimah, P.O. Box 10021, Ras Al Khaimah, United Arab Emirates

RESUMO

The present problem addresses double-diffusive magnetohydrodynamic free convection in an inclined square cavity filled with a fluid-saturated porous medium under the influence of Soret and Dufour effects. The inclined cavity makes an angle with the horizontal plane. A uniform magnetic field inclined with the same angle of inclination of the cavity is applied. At the two horizontal walls of the cavity, the heat and solute transverse gradients are applied, and lateral walls of the cavity are regarded as insulated and impermeable. Using the appropriate dimensionless quantities, the governing equations with boundary conditions are transformed to nondimensional form. The governing partial differential equations are solved by the finite element method of Galerkin's weighted residual scheme. Numerical results are obtained for different values of the Rayleigh number, Lewis number, buoyancy ratio, magnetic field parameter, Soret number, and Dufour number. The overall investigation of variation of streamlines, isotherms, isoconcentration, Nusselt number, and Sherwood number is presented graphically.


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