feed ical google calendar

(1) Presentation(s)

-

Lun. 28/10/2024 10:00 Amphi Bat. 20

Séminaire
PELOSSE Alice (U. Chicago)
Candidate CNRS
The effects of confinement on suspensions of particles in different environments.

Sommaire:

During my PhD at MSC (Paris), I investigated capillary flows of suspensions — systems where micrometric particles interact with dynamic free interfaces, such as in droplet spreading or thin film destabilization under their own weight. The suspension obtained upon the addition of the particles can in some cases follow the laws of simple fluids. In other cases, these laws require adjustments or, sometimes, entirely new dynamics emerge, where dissipation, capillarity, and extreme confinement play a key role. Next, I will present two projects from my postdoctoral work at the James Franck Institute (Chicago). The first explores the addition of solid particles to an acoustically levitated droplet, where the shape and stability result from the competition between acoustic pressure, gravity, capillarity, and particle confinement. The second project delves into the phenomenon of shear thickening in colloidal suspensions and investigates how the addition of granular particles affects the suspension’s rheology. Finally, I will present several project ideas for a potential application to the CNRS at the Laboratoire Charles Coulomb. My research would focus on two main axes. The first would investigate marine microplastics, aiming to refine the understanding and modeling of ballast effects caused by biofouling and clay aggregation on their surfaces. The second would focus on soil contamination by microplastics and nanoplastics, with particular attention to their diffusion, fragmentation, and impact on the mechanical and biological properties of soils.


Pour plus d'informations, merci de contacter Merindol R.