title: Lattice Boltzmann simulation of the flow of binary immiscible fluids with different viscosities using the Shan-Chen microscopic interaction model.
abstract: We present a lattice Boltzmann study of the flow of a binary fluid where the fluid components have different viscosities. For this purpose, a microscopic interaction model (due to Shan & Chen) is used. The model is validated for Poiseuille flow of layered immiscible binary fluids and the dispersion of a capillary wave. We then study the unstable displacement of a viscous fluid by a less viscous fluid in a two-dimensional channel. Although a finger-like structure was observed in many simulations, it is not clear if this structure was produced due to viscous fingering or due to other effects.
authors.affiliation: Centre for Computational Science, Queen Mary, University of London, UK. j.chin@qmul.ac.uk
authors.forename: Jonathan
authors.initials: J
authors.lastname: Chin
authors.forename: Edo S
authors.initials: ES
authors.lastname: Boek
authors.forename: Peter V
authors.initials: PV
authors.lastname: Coveney
mesh_terms: D003102:Colloids / Q000737:chemistry*; D003198:Computer Simulation; D004058:Diffusion; D007700:Kinetics; D008956:Models, Chemical; D009038:Motion; D009716:Numerical Analysis, Computer-Assisted; D010316:Particle Size; D016062:Porosity; D011312:Pressure; D011789:Quantum Theory; D012212:Rheology / Q000379:methods*; D012996:Solutions / Q000737:chemistry*
chemical_list: D003102:Colloids; D012996:Solutions