| In this work, methods to enhance combined heat and mass transfer in film absorption and desorption processes are investigated numerically. The model is a two-dimensional flow field with a free surface existing between the gas and the liquid film. Heat and mass transfer occur across the free interface. The free interface takes a wavy shape due to disturbances introduced into film, and the effect of the disturbance configuration in enhancing heat and mass transfer rates is studied. The results obtained offer a clear picture of the heat and mass transfer processes that occur at the gas-liquid interface (streamlines, temperature contours, species concentration contours etc.) for different disturbance configurations. The interfacial Nusselt and Sherwood numbers are calculated for each case to describe the heat and mass transfer rates at the gas-liquid interface. |
