Abstract:
A new mathematical model of evaporation and crystallization of a drop of salt solution is proposed. Due to the consideration of the non-uniformity of the solution concentration inside the drop, the model allows one to describe the process of intensive evaporation, accompanied by the formation of a crystalline crust on its surface. The use of a given form of the concentration profile makes the model quite simple and, as a result, attractive for implementation in numerical calculations of aerosol dynamics. A comparison of the model predictions with experimental data on the intensive evaporation of a droplet of sodium chloride solution was carried out, which showed good qualitative and quantitative correspondence between the measured and calculated characteristics.
Keywords:drop of salt solution, intense evaporation, crystalline crust, mathematical model.
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