FORMULA FOR CALCULATING THE COMPLETE EVAPORATION TIME OF AEROSOL DROPS WITH ALLOWANCE FOR THE EVAPORATION AND SURFACE TENSION COEFFICIENTS

Abstract

An approximate formula for the time of complete evaporation of aerosol water drops into the atmosphere is obtained as a function of their initial radii. For small and large drops the formula is derived on the basis of the model of the unsteady evaporation process, taking into account the evaporation coefficient, the coefficient of surface tension and the specific heat of the phase transition. The formula for drops of intermediate size is obtained on the basis of the formulas for large and small drops with the use of continuity, smoothness and monotonicity of the complete evaporation time of drops as a function of their initial radii. The corresponding graphs are presented.