Lattice Boltzmann study of miscible viscous fingering for binary and ternary mixtures

The viscous fingering or Saffman-Taylor instability occurs when a less fluid penetrates more in porous medium. Fingering patterns refer to the deformation of interface between invading and displaced fluids. For mixtures composed three miscible species, dynamic each component varies greatly. In that case, multicomponent diffusion effects are primary importance, reverse could trigger from configuration is known be stable for binary mixtures.