Influence of Anisotropy on Thermosolutal Convection in Porous Media with Magnetic Field Effect

AuteurAGBOMAHENA, BIENVENU MACAIRE
AuteurAKOWANOU, CHRISTIAN DJIDJOHO
AuteurISSIAKO, FARAS
AuteurHONTINFINDE, REGIS
Date d'ajout2026-06-02T16:06:57Z
Date de disponibilite2026-06-02T16:06:57Z
Date de publication2022
ResumeIn the present study, both anisotropy and magnetic field effects on bi-diffusive natural convection in a rectangular cavity filled with a porous medium saturated by a binary fluid are investigated analytically for fully developed flow regime. The cavity is heated isothermally by the sides and its horizontal walls are thermally insulated or conducted. The porous medium is anisotropic in permeability whose principal axes are oriented in a direction that is arbitrary to the gravity field. On the basis of the generalized Brinkman-extended Darcy model of newtonian fluids on steady flow through porous media, analytical expressions were obtained for the flow and thermal fields, the concentration of speaces, the average Nusselt and Sherwood numbers in terms of the Darcy number, the anisotropic permeability ratio, the orientation angle of the principal axes and the Hartmann number. The limiting case corresponding to pure porous media (Da→0) and pure fluid media (Da→∞) for the thermal conditions mentioned on the cavity completed these results in order to compare them to those obtained in the literature. It is found that, Nusselt and Sherwood numbers increase by increasing anisotropic parameters of the porous medium while increasing magnetic field magnitude greatly reduces the intensity of the flow and thus affects significantly heat and mass transfer.
DOI10.11648/j.ijfmts.20220802.11
Autre identifiantBECDB-17324
URIhttps://dspace.uac.bj/handle/123456789/14432
Languefr
Fait partie deInternational Journal of Fluid Mechanics & Thermal Sciences
SujetPorous medium
SujetThermosolutal Convection
Sujetmagnetic field
Sujetanisotropy
TitreInfluence of Anisotropy on Thermosolutal Convection in Porous Media with Magnetic Field Effect
TypeArticle

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