Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2007-06-11
Physics
Condensed Matter
Soft Condensed Matter
5 pages, 3 figures
Scientific paper
10.1103/PhysRevE.76.045702
Simulations of liquid-gas systems with extended interfaces are observed to fail to give accurate results for two reasons: the interface can get ``stuck'' on the lattice or a density overshoot develops around the interface. In the first case the bulk densities can take a range of values, dependent on the initial conditions. In the second case inaccurate bulk densities are found. In this communication we derive the minimum interface width required for the accurate simulation of liquid gas systems with a diffuse interface. We demonstrate this criterion for lattice Boltzmann simulations of a van der Waals gas. When combining this criterion with predictions for the bulk stability we can predict the parameter range that leads to stable and accurate simulation results. This allows us to identify parameter ranges leading to high density ratios of over 1000. This is despite the fact that lattice Boltzmann simulations of liquid-gas systems were believed to be restricted to modest density ratios of less than 20.
Pooley C. M.
Wagner Alexander J.
No associations
LandOfFree
Interface Width and Bulk Stability: requirements for the simulation of Deeply Quenched Liquid-Gas Systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Interface Width and Bulk Stability: requirements for the simulation of Deeply Quenched Liquid-Gas Systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interface Width and Bulk Stability: requirements for the simulation of Deeply Quenched Liquid-Gas Systems will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-178919