Phase separation of incompressible binary fluids with Lattice Boltzmann Methods

Details Phase separation of incompressible binary fluids with Lattice Boltzmann Methods Phase separation of incompressible binary fluids with Lattice Boltzmann Methods

2003-09-23

arxiv.org/abs/cond-mat/0309517v1

Physica A 331 (2004) 10-22.

Physics

Condensed Matter

Soft Condensed Matter

RevTEX, two tables, three figures (Fig.2 and Fig.3 are in JPG format). Physica A (in press)

Scientific paper

We introduce new versions of lattice Boltzmann methods (LBM) for incompressible binary mixtures where fluctuations of total density are inhibited. As a test for the improved algorithms we consider the problem of phase separation of two-dimensional binary mixtures quenched from a disordered state into the coexistence region. We find that the stability properties of LBM are greatly improved. The control of density fluctuations and the possibility of running longer simulations allow a more precise evaluation of the growth exponent.

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