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 …

Simulations of soluble surfactants in 3D multiphase flow

M Muradoglu, G Tryggvason - Journal of computational physics, 2014‏ - Elsevier
A finite-difference/front-tracking method is developed for simulations of soluble surfactants in
3D multiphase flows. The interfacial and bulk surfactant concentration evolution equations …

A cut finite element method for coupled bulk-surface problems on time-dependent domains

P Hansbo, MG Larson, S Zahedi - Computer Methods in Applied Mechanics …, 2016‏ - Elsevier
In this contribution we present a new computational method for coupled bulk-surface
problems on time-dependent domains. The method is based on a space–time formulation …

Decoupled, energy stable schemes for a phase-field surfactant model

G Zhu, J Kou, S Sun, J Yao, A Li - Computer Physics Communications, 2018‏ - Elsevier
In this paper, we construct several linear, decoupled and energy stable schemes for a phase-
field surfactant model, in which the free energy functional contains a fourth-order Ginzburg …

Dynamic fluid-film interferometry as a predictor of bulk foam properties

JM Frostad, D Tammaro, L Santollani, SB de Araujo… - Soft matter, 2016‏ - pubs.rsc.org
Understanding and enabling the control of the properties of foams is important for a variety
of commercial processes and consumer products. In these systems, the role of surface active …

Effect of soluble surfactant on the motion of a confined droplet in a square microchannel

ZY Luo, XL Shang, BF Bai - Physics of Fluids, 2019‏ - pubs.aip.org
Surfactants are widely used in the manipulation of drop motion in microchannels, which is
commonly involved in many applications, eg, surfactant assisted oil recovery and droplet …

A positivity-preserving and convergent numerical scheme for the binary fluid-surfactant system

Y Qin, C Wang, Z Zhang - arxiv preprint arxiv:2102.08105, 2021‏ - arxiv.org
In this paper, we develop a first order (in time) numerical scheme for the binary fluid
surfactant phase field model. The free energy contains a double-well potential, a nonlinear …

Numerical study of surfactant dynamics during emulsification in a T-junction microchannel

A Riaud, H Zhang, X Wang, K Wang, G Luo - Langmuir, 2018‏ - ACS Publications
Microchannel emulsification requires large amounts of surfactant to prevent coalescence
and improve emulsions lifetime. However, most numerical studies have considered …

Numerical approximation of a phase-field surfactant model with fluid flow

G Zhu, J Kou, S Sun, J Yao, A Li - Journal of Scientific Computing, 2019‏ - Springer
Modeling interfacial dynamics with soluble surfactants in a multiphase system is a
challenging task. Here, we consider the numerical approximation of a phase-field surfactant …

Interfacial dynamics with soluble surfactants: A phase-field two-phase flow model with variable densities

G Zhu, A Li - Advances in Geo-Energy Research, 2020‏ - ager.yandypress.com
In this work, we present a hydrodynamics coupled phase-field surfactant model with variable
densities. Two scalar auxiliary variables are introduced to transform the original free energy …