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Journal of Porous Media
Facteur d'impact: 1.752 Facteur d'impact sur 5 ans: 1.487 SJR: 0.43 SNIP: 0.762 CiteScore™: 2.3

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

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v20.i1.10
pages 1-17

HEAT AND MASS TRANSFER CHARACTERISTICS OF Al2O3−WATER AND Ag−WATER NANOFLUID THROUGH POROUS MEDIA OVER A VERTICAL CONE WITH HEAT GENERATION/ABSORPTION

P. Sudarsana Reddy
Department of Mathematics, RGM College of Engineering and Technology, Nandyal 518501, AP, 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

RÉSUMÉ

In this article, we have presented a numerical solution to the MHD heat and mass transfer flow of a nanofluid through porous media over a vertical cone with heat generation/absorption, thermal radiation, and chemical reaction. Though we have different varieties of nanofluids, we have considered Al2O3−water and Ag−water based nanofluids (with volume fraction 1% and 4%) in this problem. The transformed conservation equations for the nanofluid are solved numerically subject to the boundary conditions using an efficient, extensively validated, variational finite element analysis. The numerical code is validated with previous studies. The influence of important nondimensional parameters, namely, nanoparticle volume fraction (φ), Prandtl number (Pr), magnetic parameter (M), mixed convection (Ra), buoyancy ratio (Nr), and space-dependent (A), temperature-dependent (B), thermal radiation (R), and chemical reaction (Cr) on velocity, temperature, and nanoparticle concentration fields as well as the skin-friction coefficient, Nusselt number, and Sherwood number are examined in detail and the results are shown graphically and in tabular form to illustrate the physical importance of the problem.


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