Growth Kinetics in Multicomponent Fluids

Abstract

The hydrodynamic effects on the late stage kinetics in spinodal decomposition of multicomponent fluids are examined using a lattice Boltzmann scheme with stochastic fluctuations in the fluid and at the interface. In two dimensions, the three and four component immiscible fluid mixture (with a $1024^2$ lattice) behaves like an off-critical binary fluid with an estimated domain growth of $t^{0.4\pm .03}$ rather than $t^{1/3}$ as previously predicted, showing the significant influence of hydrodynamics. In three dimensions (with a $256^3$ lattice), we estimate the growth as $t^{0.96\pm 0.05}$ for both critical and off-critical quenching, in agreement with phenomenological theory.

References in corpus (3)

• A Lattice Boltzmann Model for Multi-phase Fluid Flows
• Hydrodynamic Spinodal Decomposition: Growth Kinetics and Scaling Functions
• Domain Growth, Wetting and Scaling in Porous Media

Cited by in corpus (7)

• Molecular Dynamics Simulation of Spinodal Decomposition in Three-Dimensional Binary Fluids
• A Ternary Lattice Boltzmann Model for Amphiphilic Fluids
• Numerical simulations of complex fluid-fluid interface dynamics
• Phase separation in thermal systems: LB study and morphological characterization
• Spinodal decomposition in fluids: diffusive, viscous and inertial regimes
• Spinodal decomposition of off-critical quenches with a viscous phase using dissipative particle dynamics in two and three spatial dimensions
• Lattice-Gas Simulations of Minority-Phase Domain Growth in Binary Immiscible and Ternary Amphiphilic Fluid