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Related Experiment Video

Updated: May 18, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

Forcing scheme in pseudopotential lattice Boltzmann model for multiphase flows.

Q Li¹, K H Luo, X J Li

¹Energy Technology Research Group, Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, United Kingdom.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics

|September 26, 2012

Summary

This summary is machine-generated.

This study analyzes forcing schemes in pseudopotential lattice Boltzmann (LB) models, revealing why different schemes perform differently. An improved forcing scheme is proposed to enhance thermodynamic consistency in multiphase flow simulations.

Related Experiment Videos

Last Updated: May 18, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

Area of Science:

Computational physics
Fluid dynamics
Multiphase flow modeling

Background:

The pseudopotential lattice Boltzmann (LB) model is crucial for simulating multiphase flows.
Interaction forces, implemented via forcing schemes, are key to mimicking molecular interactions and phase segregation in this model.

Purpose of the Study:

To address critical issues concerning forcing schemes within the pseudopotential LB model.
To analyze the performance differences between existing forcing schemes and propose an improved alternative.

Main Methods:

Theoretical and numerical analysis of Shan-Chen and exact-difference-method forcing schemes.
Investigation of the underlying physics governing the performance of different forcing schemes.
Development and numerical validation of an improved forcing scheme.

Main Results:

The study elucidates the nature of Shan-Chen and exact-difference-method forcing schemes and their recovered macroscopic equations.
Theoretical analysis reveals the physical reasons behind performance variations among different forcing schemes.
The proposed improved forcing scheme demonstrates effectiveness in achieving thermodynamic consistency.

Conclusions:

Forcing schemes significantly impact the pseudopotential LB model's performance.
Understanding the physics of forcing schemes is essential for accurate multiphase flow simulations.
The developed improved forcing scheme offers a viable method for enhancing thermodynamic consistency in LB models.