Novel Finite Difference Lattice Boltzmann Model for Gas‐Liquid Flow

A novel model for the finite difference lattice Boltzmann method is proposed to simulate gas‐liquid two‐phase flow. The effect of the large density difference is incorporated by applying acceleration modification which is deduced from macroscopic dynamics in this model. Compressibility of the fluid is adjustable. Surface tension effects are included by introducing a body force term based on the Continuum Surface Force (CSF) method. The recoloring step is replaced by a anti‐diffusion scheme. Here we present results for liquid column collapse and droplet splashing on a thin liquid film. Results are in good agreement with experiment.