This work presents a model that calculates re-entrainment in analogy to transport processes between fluid phases, which are well known in chemical engineering. Mass transfer processes for fluid phases are described, among other models, by film theory. Re-entrainment was computed according to the film theory with a mass transfer coefficient. The mass transfer coefficient is just one parameter that determines the re-entrainment rate. To show that this parameter was accessible by physical principles, outcomes of this model were compared with experimental data published by Ibrahim et al. [1-2]. The mass transfer coefficients for these calculations were determined by a microscopic view of the forces acting on one single particle. This comparison shows that this one parameter model was able to reproduce experimental data of the re-entrainment of single particles.