Issue |
EPL
Volume 121, Number 2, January 2018
|
|
---|---|---|
Article Number | 24003 | |
Number of page(s) | 7 | |
Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
DOI | https://doi.org/10.1209/0295-5075/121/24003 | |
Published online | 20 March 2018 |
Hydrodynamics of binary-fluid mixtures —An augmented Multiparticle Collison Dynamics approach
Theoretical Soft Matter and Biophysics, Institute for Advanced Simulation and Institute of Complex Systems, Forschungszentrum Jüulich - 52425 Jülich, Germany
Received: 5 December 2017
Accepted: 1 March 2018
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.
PACS: 47.11.-j – Computational methods in fluid dynamics / 83.10.Rs – Computer simulation of molecular and particle dynamics / 05.70.Fh – Phase transitions: general studies
© EPLA, 2018
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.