How droplets pin on solid surfaces

J Zhang, W Ding, U Hampel - Journal of Colloid and Interface Science, 2023‏ - Elsevier
Hypothesis When a droplet starts sliding on a solid surface, the droplet-solid friction force
develops in a manner comparable to the solid–solid friction force, showing a static regime …

Molecular origin of contact line friction in dynamic wetting

P Johansson, B Hess - Physical Review Fluids, 2018‏ - APS
A hydrophilic liquid, such as water, forms hydrogen bonds with a hydrophilic substrate. The
strength and locality of the hydrogen bonding interactions prohibit slip of the liquid over the …

Nanoscale sheared droplet: volume-of-fluid, phase-field and no-slip molecular dynamics

U Lācis, M Pellegrino, J Sundin, G Amberg… - Journal of Fluid …, 2022‏ - cambridge.org
The motion of the three-phase contact line between two immiscible fluids and a solid surface
arises in a variety of wetting phenomena and technological applications. One challenge in …

[HTML][HTML] Multiscale simulation of dynamic wetting

J Zhang, MK Borg, JM Reese - International Journal of Heat and Mass …, 2017‏ - Elsevier
A sequential multiscale strategy that combines molecular dynamics (MD) with volume of fluid
(VOF) simulations is proposed to study the spreading of droplets on surfaces. In this hybrid …

Steady moving contact line of water over a no-slip substrate: Challenges in benchmarking phase-field and volume-of-fluid methods against molecular dynamics …

U Lācis, P Johansson, T Fullana, B Hess… - The European Physical …, 2020‏ - Springer
The movement of the triple contact line plays a crucial role in many applications such as ink-
jet printing, liquid coating and drainage (imbibition) in porous media. To design accurate …

Dynamic wetting of photoresponsive arylazopyrazole monolayers is controlled by the molecular kinetics of the monolayer

C Honnigfort, L Topp, N García Rey… - Journal of the …, 2022‏ - ACS Publications
Smart surfaces that can change their wettability on demand are interesting for applications
such as self-cleaning surfaces or lab-on-a-chip devices. We have synthesized …

Shape evolution of drops on surfaces of different wettability gradients

IU Chowdhury, PS Mahapatra, AK Sen - Chemical Engineering Science, 2021‏ - Elsevier
Passive droplet manipulation on open surfaces can be achieved by creating a wettability
gradient on surfaces, which is essential in the fabrication of low cost biological and …

Effective slip over partially filled microcavities and its possible failure

Z Ge, H Holmgren, M Kronbichler, L Brandt, G Kreiss - Physical Review Fluids, 2018‏ - APS
Motivated by the emerging applications of liquid-infused surfaces (LIS), we study the drag
reduction and robustness of transverse flows over two-dimensional microcavities partially …

Directional spreading of a viscous droplet on a conical fibre

TS Chan, F Yang, A Carlson - Journal of Fluid Mechanics, 2020‏ - cambridge.org
If a droplet smaller than the capillary length is placed on a substrate with a conical shape, it
spreads by itself in the direction of growing fibre radius. We describe this capillary spreading …

Wettability of soft PLGA surfaces predicted by experimentally augmented atomistic models

FM Bellussi, OM Roscioni, E Rossi, A Cardellini… - MRS Bulletin, 2023‏ - Springer
A challenging topic in surface engineering is predicting the wetting properties of soft
interfaces with different liquids. However, a robust computational protocol suitable for …