Lattice Boltzmann model for simulating flows with multiple phases and components

TLDR

A lattice Boltzmann model is developed to simulate flows containing multiple phases and components. The model employs a lattice Boltzmann framework with interparticle potentials, allowing immiscible components with distinct masses and nonideal gas equations of state, and uses local dynamics for efficient parallel computation. The model is applicable to large‑scale simulations of diverse fluid flow scenarios.

Abstract

A lattice Boltzmann model is developed which has the ability to simulate flows containing multiple phases and components. Each of the components can be immiscible with the others and can have different mass values. The equilibrium state of each component can have a nonideal gas equation of state at a prescribed temperature exhibiting thermodynamic phase transitions. The scheme incorporated in this model is the introduction of an interparticle potential. The dynamical rules in this model are local so it is highly efficient to compute on massively parallel computers. This model has many applications in large-scale numerical simulations of various types of fluid flows.