Tayeb, M.Bouaziz, M.N.2019-05-262019-05-262018-12-10https://dspace.univ-eloued.dz/handle/123456789/1503International Symposium on Mechatronics and Renewable Energies El-Oued 10- 11 December 2018The effects of the couple-stress parameter only or combined with Darcy/Forchheimer numbers are studied for natural convection of mass and heat transfer, of a couple stress fluid through a porous channel in the presence of a magnetic field. To obtain easy ordinary system, similarity transformations are used for the nonlinear partial differential equations. Then the resulting equations are numerically solved. Graphical illustrations containing non-dimensional velocity, temperature, and concentration are presented mainly for different values of the couple-stress parameter via the large values of the Darcy and Forchheimer numbersenNatural Convection, heat and mass transfer, MHD, porous medium, Couple stress parameter, vertical channelOther