  We present a diffusion dominated evaporation model using the popular
pseudopotential multicomponent lattice Boltzmann method introduced by Shan and
Chen. With an analytical computation of the diffusion coefficients, we
demonstrate that Fick's law is obeyed. We then validate the applicability of
our model by demonstrating the agreement of the time evolution of the interface
position of an evaporating planar film to the analytical prediction.
Furthermore, we study the evaporation of a freely floating droplet and confirm
that the effect of Laplace pressure is significant for predicting the time
evolution of small droplet radii.
