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Updated: Aug 6, 2026
06:37
Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package
Published on: September 17, 2021
Lattice Boltzmann simulations of phase separation in chemically reactive binary fluids
1Rudolf Peierls Centre for Theoretical Physics, 1 Keble Road, Oxford OX1 3NP, United Kingdom.
Summary
Hydrodynamics significantly impacts pattern formation in reactive binary fluids. This study reveals how fluid flow influences domain growth and steady states in chemically reactive systems.
Area of Science:
- Chemical Physics
- Fluid Dynamics
- Computational Science
Background:
- Pattern formation in chemically reactive binary fluids is complex.
- Hydrodynamic effects play a crucial role in phase separation dynamics.
- Understanding these dynamics is key to controlling material properties.
Purpose of the Study:
- To investigate pattern formation in chemically reactive binary fluids.
- To analyze the influence of hydrodynamic effects on domain growth and steady states.
- To compare systems with linear and quadratic reaction terms.
Main Methods:
- Utilized a lattice Boltzmann method for simulations.
- Solved coupled Cahn-Hilliard and Navier-Stokes equations.
- Incorporated a reactive source term into the Cahn-Hilliard equation.
Main Results:
- Hydrodynamic effects were found to be significant.
- Fluid flow influences domain growth pathways.
- The viscosity regime affects the system's eventual steady states.
Conclusions:
- Hydrodynamics critically shapes pattern formation in reactive binary fluids.
- The interplay between fluid composition and pressure is a key coupling mechanism.
- Simulation results provide insights into controlling phase separation in such systems.
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