RT Journal Article ID 33e0cd515c92bd5c A1 Mechergui, Olfa A1 Chesneau, Xavier A1 Laatar, Ali Hatem T1 HEAT AND MASS TRANSFER BY NATURAL CONVECTION DURING WATER EVAPORATION IN A CORRUGATED VERTICAL CHANNEL JF Heat Transfer Research JO HTR YR 2019 FD 2018-10-26 VO 50 IS 2 SP 125 OP 157 K1 corrugated vertical channel K1 obstructions K1 natural convection K1 Nusselt number K1 heat and mass transfer K1 numerical simulation K1 evaporation K1 liquid film AB This paper deals with a numerical study of coupled heat and mass transfers by natural convection during water evaporation in a corrugated vertical channel. This channel is heated asymmetrically with a uniform heat flux. The unsteady two-dimensional Navier–Stokes, energy, and species equations are integrated by a finite volume approach and then solved using the projections method. The aim of this work is to conduct a detailed numerical study to analyze the effects of physical parameters such as flux density imposed on the wall, the relative humidity, and the effects of geometrical parameters such as the shape, the size, and the number of protuberances. More than four hundred numerical simulations have been carried in order to analyze the effect of added obstructions to a vertical open channel. The numerical results are the distributions of dimensionless axial velocity, temperature, and concentration; the Nusselt number as well as the Sherwood number are also presented. For some particular cases, results are in agreement with previous works reported in the literature. Moreover, the agreement between numerical results and experimental data is satisfactory. PB Begell House LK https://www.dl.begellhouse.com/journals/46784ef93dddff27,76cfe51273ea74be,33e0cd515c92bd5c.html