Hydrodynamics of Binary Fluid Mixtures - An Augmented Multiparticle Collison Dynamics Approach

Abstract

The Multiparticle Collision Dynamics technique (MPC) for hydrodynamics simulations is generalized to binary fluid mixtures and multiphase flows, by coupling the particle-based fluid dynamics to a Ginzburg-Landau free-energy functional for phase-separating binary fluids. To describe fluids with a non-ideal equation of state, an additional density-dependent term is introduced. The new approach is verified by applying it to thermodynamics near the critical demixing point, and interface fluctuations of droplets. The interfacial tension obtained from the analysis of the capillary wave spectrum agrees well with the results based on the Laplace-Young equation. Phase-separation dynamics follows the Lifshitz-Slyozov law.

References in corpus (4)

• Active Particles in Complex and Crowded Environments
• Physics of Microswimmers - Single Particle Motion and Collective Behavior
• Stochastic Rotation Dynamics simulations of wetting multi-phase flows
• A mesoscopic model for binary fluids

Cited by in corpus (4)

• Multiparticle Collision Dynamics for Tensorial Nematodynamics
• Stratification of polymer mixtures in drying droplets: hydrodynamics and diffusion
• Hydrodynamic correlations in isotropic fluids and liquid crystals simulated by multi-particle collision dynamics
• Hydrodynamics of Immiscible Binary Fluids with Viscosity Contrast: A multiparticle collision dynamics approach