Lattice-Boltzmann model of amphiphilic systems
Max-Planck-Institut für Kolloid- und Grenzflächenforschung,
Kantstr. 55, 14513 Teltow, Germany
2 Department of Medicinal Chemistry and Minnesota Supercomputer Institute, University of Minnesota - 308 Harvard Street SE, Minneapolis, MN 55455, USA
Accepted: 31 March 1998
A lattice-Boltzmann model for the study of the dynamics of oil-water-surfactant mixtures is constructed. The model, which is based on a Ginzburg-Landau theory of amphiphilic systems with a single, scalar order parameter, is then used to calculate the spectrum of undulation modes of an oil-water interface and the spontaneous emulsification of oil and water after a quench from two-phase coexistence into the lamellar phase. A comparison with some analytical results shows that the model provides an accurate description of the static and dynamic behavior of amphiphilic systems.
PACS: 47.20.Ma – Interfacial instability / 82.70.-y – Disperse systems / 83.10.Lk – Multiphase flows
© EDP Sciences, 1998