Modeling surfactant-laden droplet dynamics by lattice Boltzmann method

Y Zong, C Zhang, H Liang, L Wang, J Xu - Physics of Fluids, 2020 - pubs.aip.org
Based on the phase-field theory, we present an improved lattice Boltzmann (LB) method for
simulating droplet dynamics with soluble surfactants. This method takes advantage of three …

Turbulent flows with drops and bubbles: What numerical simulations can tell us—Freeman scholar lecture

G Soligo, A Roccon, A Soldati - Journal of Fluids …, 2021 - asmedigitalcollection.asme.org
Turbulent flows laden withlarge, deformable drops or bubbles are ubiquitous in nature and a
number of industrial processes. These flows are characterized by physics acting at many …

Discrete Boltzmann multi-scale modelling of non-equilibrium multiphase flows

Y Gan, A Xu, H Lai, W Li, G Sun… - Journal of Fluid Mechanics, 2022 - cambridge.org
The aim of this paper is twofold: the first aim is to formulate and validate a multi-scale
discrete Boltzmann method (DBM) based on density functional kinetic theory for thermal …

A phase-field moving contact line model with soluble surfactants

G Zhu, J Kou, J Yao, A Li, S Sun - Journal of Computational Physics, 2020 - Elsevier
A phase-field moving contact line model is presented for a two-phase system with soluble
surfactants. With the introduction of some scalar auxiliary variables, the original free energy …

Thermodynamically consistent modelling of two-phase flows with moving contact line and soluble surfactants

G Zhu, J Kou, B Yao, Y Wu, J Yao… - Journal of Fluid …, 2019 - cambridge.org
Droplet dynamics on a solid substrate is significantly influenced by surfactants. It remains a
challenging task to model and simulate the moving contact line dynamics with soluble …

Deformation and breakup of a compound droplet in three-dimensional oscillatory shear flow

H Liu, Y Lu, S Li, Y Yu, KC Sahu - International Journal of Multiphase Flow, 2021 - Elsevier
A compound droplet subject to three-dimensional oscillatory shear flow is studied using a
three-phase lattice Boltzmann model. Firstly, focusing on low values of capillary number …

Breakage, coalescence and size distribution of surfactant-laden droplets in turbulent flow

G Soligo, A Roccon, A Soldati - Journal of Fluid Mechanics, 2019 - cambridge.org
In this work, we compute numerically breakage/coalescence rates and size distribution of
surfactant-laden droplets in turbulent flow. We use direct numerical simulation of turbulence …

[HTML][HTML] Experimental study on the electrohydrodynamic deformation of droplets in a combined DC electric field and shear flow field

X Liu, G Hao, B Li, Y Chen - Fundamental Research, 2023 - Elsevier
A visualization experiment was conducted to investigate the electrohydrodynamic
deformation of droplets in a combined DC electric field and shear flow field. Detailed …

Modelling double emulsion formation in planar flow-focusing microchannels

N Wang, C Semprebon, H Liu, C Zhang… - Journal of Fluid …, 2020 - cambridge.org
Double emulsion formation in a hierarchical flow-focusing channel is systematically
investigated using a free-energy ternary lattice Boltzmann model. A three-dimensional …

Stability and tip streaming of a surfactant-loaded drop in an extensional flow. Influence of surface viscosity

MA Herrada, A Ponce-Torres, M Rubio… - Journal of Fluid …, 2022 - cambridge.org
We study numerically the nonlinear stationary states of a droplet covered with an insoluble
surfactant in a uniaxial extensional flow. We calculate both the eigenfunctions to reveal the …