Unsteady convective mass and heat transfer for a drop in the case of commensurable phase resistances

An asymptotic analysis of the unsteady convective mass and heat transfer between a drop and a continuous medium at high Peclet numbers is carried out on the assumption that, in the boundary condition of phase equilibrium on the drop surface, the concentration of the disperse phase depends arbitrarily on the concentration of the continuum phase. It is shown that the heat and mass transfer process occurs with significant qualitative differences in three characteristic successive intervals of time. The first interval is characterized by the formation of diffusion boundary layers; the second interval is characterized by intense interaction between the inner diffusion wake and the boundary layer; and the third interval is characterized by conditions under which the boundary layer has practically ceased to exist and the mass transfer inside the drop is effected through diffusion in the direction perpendicular to the streamlines.