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Lattice Boltzmann simulations of lamellar and droplet phases

1998; American Physical Society; Volume: 58; Issue: 1 Linguagem: Inglês

10.1103/physreve.58.480

1538-4519

Giuseppe Gonnella, Enzo Orlandini, Julia M. Yeomans,

Fluid Dynamics and Vibration Analysis

Lattice Boltzmann simulations are used to investigate spinodal decomposition in a two-dimensional binary fluid with equilibrium lamellar and droplet phases. We emphasize the importance of hydrodynamic flow to the phase separation kinetics. For mixtures slightly asymmetric in composition the fluid phase separates into bulk and lamellar phases with the lamellae forming distinctive spiral structures to minimize their elastic energy.