Diffusion in a moving medium with time‐dependent boundaries
Hermann Forster · AIChE Journal · 1957
Abstract The problem of diffusion in a moving medium with given motion of the boundaries is considered. The method presented yields the analytical solution to any desired degree of accuracy provided that solutions for certain associated problems of diffusion in a medium at rest with boundaries at rest are known. The method is applied to the analysis of partial and approximate solutions previously presented for the one‐dimensional case of a spherical cavity in a liquid with radial boundary motion induced by evaporation.