Lattice Boltzmann model for simulating flows with multiple phases and components, Phys. Rev. E, 47, 1815–1819

This paper introduces the well-established Shan-Chen model for multicomponent and multiphase fluids. A local body-force is added to account for the intermolecular interaction between two fluid components or phases. The model is straightforward, and impressive results are obtained with fairly little effort. The Shan-Chen model is therefore widely used, despite potential numerical deficiencies in some regimes (it may for example be unstable for high density ratios between fluid components).