The Schlieren method of visualization is employed to observe cellular convection in thin liquid layers evaporating in an atmospheric environment. Various organic liquids of different thicknesses are tested and evaporation rates are measured. A Marangoni number is defined based on evaporation rate and is found to dominate stationary cell size. A model is developed to explain the mechanism of evaporation-induced cellular convection in a thin liquid layer that is adiabatic, or subject to cooling or heating from below.
展开▼
