Lattice-Boltzmann model for interacting amphiphilic fluids

We develop our recently proposed lattice-Boltzmann method for the nonequili brium dynamics of amphiphilic fluids [H. Chen, B. M. Boghosian, P. V. Coven ey, and M. Nekovee, Proc. R. Sec. London, Ser. A 456, 2043 (2000)]. Our met hod maintains an orientational degree of freedom for the amphiphilic specie s and models fluid interactions at a microscopic level by introducing self- consistent mean-field forces between the particles into the lattice-Boltzma nn dynamics, in a way that is consistent with kinetic theory. We present th e results of extensive simulations in two dimensions which demonstrate the ability of our model to capture the correct phenomenology of binary and ter nary amphiphilic fluids.