A cumulant-based phase-field lattice Boltzmann method for two-phase flows: Stable simulation at high Reynolds numbers and large density ratios

2026-05-09

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Jie Kang

Dongyin Wu *

DOI：10.1016/j.ijmultiphaseflow.2026.105757

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Abstract

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• Reconstruction of the phase-field LBM collision process using the cumulant model. • Development of a novel forcing scheme to reduce computational error. • Simulation of Rayleigh–Taylor instability at Re=3×105. • Droplet breakup into fourteen satellites in shear flow. • Liquid jet simulation at Re=1.5×105 with a density ratio of 100.

Keywords:

phase-field lattice Boltzmann method

cumulant model

two-phase flows

high Reynolds numbers

large density ratios

A cumulant-based phase-field lattice Boltzmann method for two-phase flows: Stable simulation at high Reynolds numbers and large density ratios

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