Phase separation of incompressible binary fluids with Lattice Boltzmann Methods

Abstract

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.

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

References in corpus (2)

• Phase separating binary fluids under oscillatory shear
• Three-dimensional lattice-Boltzmann simulations of critical spinodal decomposition in binary immiscible fluids

Cited by in corpus (12)

• Lattice Boltzmann Methods and Active Fluids
• Lattice Boltzmann study on Kelvin-Helmholtz instability: the roles of velocity and density gradients
• Lattice Boltzmann model for combustion and detonation
• Morphologies and flow patterns in quenching of lamellar systems with shear
• A phase-field model for large-density-ratio two-phase flows based on discrete unified gas-kinetic scheme
• Phase separation in thermal systems: LB study and morphological characterization
• Finite-Difference Lattice Boltzmann Methods for binary fluids
• Two-dimensional finite-difference lattice Boltzmann method for the complete Navier-Stokes equations of binary fluids
• Morphological characterization of shocked porous material
• Phase Amplification in Spinodal Decomposition of Immiscible Fluids with Interconversion of Species
• Structural transitions and arrest of domain growth in sheared binary immiscible fluids and microemulsions
• Simulating liquid-vapor phase separation under shear with lattice Boltzmann method