Diffusion-Thermo Effects on Free Convective Heat and Mass Transfer Flow in a Vertical Channel With Symmetric Boundary Conditions

摘要: This article investigates the influence of diffusion-thermo effect on transient free convective heat and mass transfer flow in a channel bounded by two infinite vertical parallel plates. Fully developed laminar is considered when boundaries are subjected to symmetric concentration thermal input. The Dufour taken into consideration. velocity, temperature, profiles obtained analytically using Laplace transforms technique used compute shear stress, Nusselt number, flux. During course computation, it was found that solution at large time coincides with steady-state derived separately. Diffusion-thermo (Dufour effect) observed create an anomalous situation temperature velocity for small Prandtl numbers. There also reversal number negative values sustentation parameter (N). At steady-state, there neither nor between fluid