Effect of thermal and mass buoyancy forces on the development of laminar mixed convection between vertical parallel plates with uniform wall heat and mass fluxes

DynamFluid: Development and Validation of a New GUI-Based CFD Tool for the Analysis of Incompressible Non-Isothermal Flows

“…The occurrence (or not) of flow reversal depends on the length of the vertical channel and the buoyancy effect induced by the temperature difference between the hot and cold walls. Previous studies have shown that for the flow reversal to occur, in high Reynolds number flows the ratio of the Grashof number to the Reynolds number must be higher than a critical value that depends on the wall temperature difference ratio [30][31][32][33][34][35][36][37][38][39][40][41][42][43]. (iii)…”

“…From flow visualizations, they concluded that the reversal of the flow happened to be a V-shaped recirculating flow near the channel exit when Gr/Re 2 is greater than a critical value, although the reversal occurs initially downstream, but advances gradually downwards when Gr/Re 2 increases. El-Din [37], studied the flow development between two vertical plates with uniform heat and mass fluxes studying the effect of the thermal and mass transfer buoyancies.…”

The Effect of MHD and Brinkman Number on Laminar Mixed Convection of Newtonian Fluid Between Vertical Parallel Plates Channel

“…One of the earliest analyses on this subject can be found in Tao [1]. Salah El-Din [2] have studied the effect of thermal and mass buoyancy forces on the development of laminar mixed convection between two vertical parallel plates in the case of wall heat and mass fluxes. Rajagopal [3] have done an analytical investigation on free convection for non-Newtonian fluids in a parallel plates channel with different wall temperature.…”

Buoyancy effects on upward and downward laminar mixed convection heat and mass transfer in a vertical channel

“…The authors concluded that large amount of water evaporation was obtained with higher wall temperature, but this also results in condensation closer to the inlet at the wall whose temperature is low. Salah El Din (2003) has performed a numerical investigation of the thermal and buoyancy effects on mixed convection in a vertical channel with uniform wall heat and mass fluxes. It is interesting to mention the experimental work of Yan et al (1995) on the evaporative cooling of the falling liquid film through interfacial heat and mass transfer in a vertical channel.…”