Multi-phase-field modeling using a conservative Allen–Cahn equation for multiphase flow

S Aihara, T Takaki, N Takada - Computers & Fluids, 2019 - Elsevier
The phase-field (PF) method is a method for interface tracking that can treat complex
topological changes relatively easily because of its diffuse interface model. Therefore, as …

Viscoelastic effects on the deformation and breakup of a droplet on a solid wall in Couette flow

N Wang, S Li, L Shi, X Yuan, H Liu - Journal of Fluid Mechanics, 2023 - cambridge.org
The deformation, movement and breakup of a wall-attached droplet subject to Couette flow
are systematically investigated using an enhanced lattice Boltzmann colour-gradient model …

Effects of viscoelasticity on drop impact and spreading on a solid surface

D Izbassarov, M Muradoglu - Physical Review Fluids, 2016 - APS
The effects of viscoelasticity on drop impact and spreading on a flat solid surface are studied
computationally using a finite-difference–front-tracking method. The finitely extensible …

Role of extensional rheology on droplet bouncing

MY Pack, A Yang, A Perazzo, B Qin, HA Stone - Physical Review Fluids, 2019 - APS
Recent experiments and theories have dismissed the role of increased extensional viscosity
during impact of viscoelastic droplets. Here we show that for relatively low Weber numbers …

Rapid Spreading of Yield-Stress Liquids

S Mitra, AR Kim, B Zhao, SK Mitra - Langmuir, 2024 - ACS Publications
When a liquid drop makes initial contact with any surface, an unbalanced surface tension
force drives the contact line, causing spreading. For Newtonian liquids, either liquid inertia …

Rapid wetting of shear-thinning fluids

S Yada, K Bazesefidpar, O Tammisola, G Amberg… - Physical Review …, 2023 - APS
Using experiments and numerical simulations, we investigate the spontaneous spreading of
droplets of aqueous glycerol (Newtonian) and aqueous polymer (shear-thinning) solutions …

Viscoelastic wetting: Cox–Voinov theory with normal stress effects

M Kansal, V Bertin, C Datt, J Eggers… - Journal of Fluid …, 2024 - cambridge.org
The classical Cox–Voinov theory of contact line motion provides a relation between the
macroscopically observable contact angle, and the microscopic wetting angle as a function …

Impact of viscoelastic droplets

Y Wang, M Do-Quang, G Amberg - Journal of Non-Newtonian Fluid …, 2017 - Elsevier
We conduct numerical experiments on viscoelastic droplets hitting a flat solid surface. The
results present time-resolved non-Newtonian stresses acting in the droplet. Comparing with …

A universal rescaling law for the maximum spreading factor of non-Newtonian droplets with power-law fluids

H Liu, J Chen, J Wang - Journal of Non-Newtonian Fluid Mechanics, 2024 - Elsevier
The maximum spreading diameter of non-Newtonian fluid droplets impacting on the solid
surface is a key concern in a variety of industrial and medical applications. In this work, we …

Influence of the molecular weight and physical properties of a thermoplastic polymer on its dynamic wetting behavior

V Rougier, J Cellier, B Duchemin, M Gomina… - Chemical Engineering …, 2023 - Elsevier
The wetting dynamics of molten thermoplastic polymers, which are known to influence the
force balance of the triple line, are not understood properly despite their importance in many …