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We investigate the dynamical behavior of both binary fluid and ternarymicroemulsion systems in two dimensions using a recently introducedhydrodynamic lattice-gas model of microemulsions. We find that the presence ofamphiphile in our simulations reduces the usual oil-water interfacial tensionin accord with experiment and consequently affects the non-equilibrium growthof oil and water domains. As the density of surfactant is increased we observea crossover from the usual two-dimensional binary fluid scaling laws to agrowth that is {\it slow}, and we find that this slow growth can becharacterized by a logarithmic time scale. With sufficient surfactant in thesystem we observe that the domains cease to grow beyond a certain point and wefind that this final characteristic domain size is inversely proportional tothe interfacial surfactant concentration in the system.Comment: 28 pages, latex, embedded .eps figures, one figure is in colour, all  in one uuencoded gzip compressed tar file, submitted to Physical Review

Lattice-gas simulations of domain growth, saturation, and self-assembly in immiscible fluidsand microemulsions