Effect of Buoyancy and Magnetic Field on Unsteady Convective Diusion of Solute in a Boussinesq Stokes Suspension Bounded by Porous Beds

Authors

Nirmala P. Ratchagar, Annamalai University
R. Vijayakumar, Annamalai University

Abstract

Hydromagnetic free and forced convection in a parallel plate channel bounded by porous bed and transverse magnetic field has been considered. When there is a uniform axial temperature variation along the walls, the primary flow shows incipient flow reversal at the upper plate for an increase in temperature along that plate. Similarly flow reversal at the lower plate occurs with a decrease in temperature along that plate. The magnetic field, arising as a body couple in the governing equations is shown to increase the axis dispersion coefficient. The effect of various physical parameters such as Hartmann number, Grashof number, porous parameter and couple stress parameter on the velocity, temperature and dispersion coefficient, mean concentration, skin friction coefficient and Nusselt numbers are computed and analyzed through graphs.

Recommended Citation

Ratchagar, Nirmala P. and Vijayakumar, R. (2017). Effect of Buoyancy and Magnetic Field on Unsteady Convective Diusion of Solute in a Boussinesq Stokes Suspension Bounded by Porous Beds, Applications and Applied Mathematics: An International Journal (AAM), Vol. 12, Iss. 1, Article 35.
Available at: https://digitalcommons.pvamu.edu/aam/vol12/iss1/35