A5092416540- Pickering emulsions and particle stabilization
- Surface Modification and Superhydrophobicity
- Tribology and Lubrication Engineering
- Fluid Dynamics and Heat Transfer
- Surfactants and Colloidal Systems
- Innovative Microfluidic and Catalytic Techniques Innovation
Laboratoire de physique des Solides
2023-2025
Université Paris-Saclay
2024-2025
Centre National de la Recherche Scientifique
2024
The structure of liquid foams follows simple geometric rules formulated by Plateau 150 years ago. On smooth surfaces, the foam channels, also called pseudo borders, are straight between vertices. We demonstrate experimentally that on rough surfaces and under some conditions we establish, bubble footprint exhibits a morphological transition. can adopt zigzag shape rationalize number segments distribution describing observations made with perimeter mesh size asperities.
The structure of liquid foams follows simple geometric rules formulated by Plateau 150 years ago. By placing such foam on a microtextured hydrophilic surface, we show that the bubble footprint exhibits morphological transition. This transition concerns channels, also called pseudo borders, which are straight between vertices smooth surface. We demonstrate experimentally for sufficiently large roughness size compared to width adopts zigzag shape. is associated with absence wetting film...
Acquiring a comprehensive understanding of the interplay between foam friction and surface roughness is essential for achieving precise control over their flow dynamics. In particular, major challenge to reduce friction, which can be achieved with rough surfaces in situation where liquid infuses asperities. this study, we propose explore self-infused surfaces. We first present simple observations demonstrate effectiveness our design by recording motion puddle on smooth self-SLIPS. To...
When an open tube of small diameter touches a bubble larger diameter, the spontaneously shrinks and pushes soap film into tube. We characterize dynamics for different sizes number films in rationalize this observation from mechanical force balance involving Laplace pressure viscous advancing lamellae propose numerical resolution model, analytical solution asymptotic regime. These predictions are then compared to experiments. The emptying duration is primarily affected by initial ratio