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Special Topics & Reviews in Porous Media: An International Journal

Publication de 4  numéros par an

ISSN Imprimer: 2151-4798

ISSN En ligne: 2151-562X

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Indexed in

MAGNETO CONVECTION HEAT TRANSFER IN A POROUS SQUARE CAVITY USING LOCAL THERMAL NON-EQUILIBRIUM APPROACH

Volume 10, Numéro 2, 2019, pp. 129-141
DOI: 10.1615/SpecialTopicsRevPorousMedia.2018024964
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RÉSUMÉ

This paper addresses the effect of magnetic field on natural convection heat transfer in a two-dimensional porous square cavity using local thermal non-equilibrium approach. The cavity is bounded by isothermal vertical walls and adiabatic horizontal walls. The governing non-dimensional equations are solved by finite volume method based on the SIMPLE algorithm. The numerical simulations are presented for various pertinent parameters such as Hartmann number (0 ≤ Ha ≤ 100), interphase heat transfer coefficient (0 ≤ H ≤ 1000), Rayleigh number (103 ≤ Ra ≤ 106), thermal conductivity ratio (0.1 ≤ γ ≤ 100), and Darcy number (10-5 ≤ Da ≤ 10-1). The computed results are presented in the form of streamlines for fluid phase and isotherms for fluid and solid phases. It is found that the local thermal non-equilibrium approach has a significant effect on the heat transfer performance. The influence of magnetic field on the solid phase is significant when H and γ are very high, but it is negligible for low values of H and γ.

CITÉ PAR
  1. Badruddin , Numerical Analysis of Thermal Non-Equilibrium in Porous Medium Subjected to Internal Heating, Mathematics, 7, 11, 2019. Crossref

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