Adrien Izzet

Adrien Izzet
École Supérieure de Physique et de Chimie Industrielles | ESPCI · Laboratoire de Biochimie (LBC)

PhD
Active matter (swimming droplets, micro-organisms), rheology of suspensions, granular media, tribology

About

10
Publications
2,546
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
193
Citations
Citations since 2016
7 Research Items
191 Citations
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
Introduction
I currently work at ESPCI in Paris, FR. My research focuses on Soft Condensed Matter, namely the behavior of one-to-many particles systems. My work includes the rheology of suspensions and dry granular media; the packing properties of jammed granular matter and bio-inspired emulsions; particle motion in Active Matter (swimming droplets). My approach is mainly experimental, with a strong acquaintance with theory and numerical simulations (molecular dynamics, random walks of active particles...).
Additional affiliations
September 2021 - present
École Supérieure de Physique et de Chimie Industrielles
Position
  • PostDoc Position
Description
  • MIE team.
June 2017 - August 2021
New York University
Position
  • PostDoc Position
Description
  • • Active matter: swimming droplets (experiments and simulations) • Biophysics: bio-inspired emulsions to investigate protein-induced cell-cell adhesion.
September 2013 - May 2017
École Supérieure de Physique et de Chimie Industrielles
Position
  • PhD Student
Description
  • Dynamics and jamming of dry granular media. Key words: Non-locality, avalanches, flows, rheology, weightless environment, acoustics, experiments, DEM simulations, mechanics... Supervisors: Éric CLÉMENT & Bruno ANDREOTTI
Education
September 2013 - May 2017
École Supérieure de Physique et de Chimie Industrielles
Field of study
  • Physics of Granular Media
September 2012 - August 2013
École Polytechnique (LadHyX) - UPMC (Jean Le Rond ∂'Alembert lab.)
Field of study
  • Fluid Mechanics
September 2011 - August 2012
ENS Paris-Saclay
Field of study
  • Mechanics and Mechanical Engineering

Publications

Publications (10)
Article
Despite their apparent simplicity, suspensions of hard spheres in a Newtonian fluid show complex non-Newtonian behaviors and remain poorly understood. Recent works have pointed out the crucial role of interparticle contact forces in these behaviors. Here, we show that the same (polystyrene) particles, when immersed in different Newtonian solvents,...
Preprint
Full-text available
Despite their apparent simplicity, suspensions of hard spheres in a Newtonian fluid show complex non-Newtonian behaviors and remain poorly understood. Recent works have pointed out the crucial role of interparticle contact forces in these behaviors. Here, we show that the same (polystyrene) particles, when immersed in different Newtonian solvents,...
Article
Full-text available
We characterize the motility of athermal swimming droplets within the framework of a persistent random walk. Just like active colloids, their trajectories can be modeled with a constant velocity V and a slow angular diffusion, but the random changes in direction are not thermally driven. Instead, V is determined by the interfacial tension gradient...
Preprint
Full-text available
Here we characterize the motility of athermal swimming droplets within the framework of active rotational diffusion. Just like active colloids, their trajectories can be modeled with a constant velocity $V$ and a slow angular diffusion, but the random changes in direction are not thermally driven. Instead, $V$ is determined by the interfacial tensi...
Thesis
In their dense state, granular media can either flow like fluids or behave like solids, when they are jammed. The first part of this thesis deals with the flowing regime. We begin by presenting the non-local rheology and discuss this model with respect to the other ones proposed in the community. In order to probe this model, we perform experimenta...
Article
Full-text available
The rheology of dense granular flows is studied numerically in a shear cell controlled at constant pressure and shear stress, confined between two granular shear flows. We show that a liquid state can be achieved even far below the yield stress, whose flow can be described with the same rheology as above the yield stress. A non-local constitutive r...
Article
Full-text available
The aim of this article is to discuss the concepts of non-local rheology and fluidity, recently introduced to describe dense granular flows. We review and compare various approaches based on different constitutive relations and choices for the fluidity parameter, focusing on the kinetic elasto-plastic model introduced by Bocquet et al. (Phys. Rev....
Article
Full-text available
The aim of this article is to discuss the concepts of non-local rheology and fluidity, recently introduced to describe dense granular flows. We review and compare various approaches based on different constitutive relations and choices for the fluidity parameter, focusing on the kinetic elasto-plastic model introduced by Bocquet et al. [Phys. Rev....
Conference Paper
Full-text available
Small bodies like asteroids and comets are affected by the seismic waves generated by impacts, as the maximum acceleration of these waves exceed their local gravity. This seismic shaking is not understood however, as no space mission to date has deployed seismometers on a small body and as their detailed internal structure and seismic properties is...

Questions

Question (1)
Question
Here is the ref. I am looking for: Mindlin, J. Appl. Mech. 24, 585 (1957)
Thank you in advance!

Network

Cited By

Projects

Projects (4)
Project
Investigate the flowing properties of non-Brownian suspensions, especially relating the microscopic inter-particle properties to the bulk material behavior.
Project
Explore the mechanical characteristics of granular packing close to the jamming (/unjamming) transition.