86 citations · 435 across the 21 of their papers we have counts for
21 papers
Tuning local microstructure of colloidal gels by ultrasound-activated deformable inclusions
Brice Saint-Michel, George Petekidis, Valeria Garbin
Colloidal gels possess a memory of previous shear events, both steady and oscillatory. This memory, embedded in the microstructure, affects the mechanical response of the gel, and…
Interplay between wall slip and shear banding in a thixotropic yield stress fluid
Michela Geri, Brice Saint-Michel, Thibaut Divoux +2
We study the local dynamics of a thixotropic yield stress fluid that shows a pronounced non-monotonic flow curve. This mechanically unstable behavior is generally not observable fr…
Bubble dynamics for broadband microrheology of complex fluids
Brice Saint-Michel, Valeria Garbin
Bubbles in complex fluids are often desirable, and sometimes simply inevitable, in the processing of formulated products. Bubbles can rise by buoyancy, grow or dissolve by mass tra…
Acoustic Bubble Dynamics in a Yield-Stress Fluids
Brice Saint-Michel, Valeria Garbin
Yield-stress fluids naturally trap small bubbles when their buoyancy applies an insufficient stress to induce local yielding of the material. Under acoustic excitation, trapped bub…
X Radiography of Viscous Resuspension
Brice Saint-Michel, Sébastien Manneville, Steven Meeker +2
We use X-ray imaging to study viscous resuspension. In a Taylor-Couette geometry, we shear an initially settled layer of spherical glass particles immersed in a Newtonian fluid and…
Oscillations of small bubbles and medium yielding in elastoviscoplastic fluids
Marco De Corato, Brice Saint-Michel, George Makrigiorgios +3
We investigate the radial oscillations of small gas bubbles trapped in yield-stress fluid and driven by an acoustic pressure field. We model the rheological behavior of the yield-s…
Irreversible hardening of a colloidal gel under shear: the smart response of natural rubber latex gels
Guilherme de Oliveira Reis, Thomas Gibaud, Brice Saint-Michel +6
Natural rubber is obtained by processing natural rubber latex, a liquid colloidal suspension that rapidly gels after exudation from the tree. We prepared such gels by acidification…
Wall friction and Janssen effect in the solidification of suspensions
Brice Saint-Michel, Marc Georgelin, Sylvain Deville +1
We address the mechanical effect of rigid boundaries on freezing suspensions. For this we perform the directional solidification of monodispersed suspensions in thin samples and we…
Uncovering instabilities in the spatiotemporal dynamics of a shear-thickening cornstarch suspension
Brice Saint-Michel, Thomas Gibaud, Sébastien Manneville
Recent theories predict that discontinuous shear-thickening (DST) involves an instability, the nature of which remains elusive. Here, we explore unsteady dynamics in a dense cornst…
Boundary-induced inhomogeneity of particle layers in the solidification of suspensions
Brice Saint-Michel, Marc Georgelin, Sylvain Deville +1
When a suspension freezes, a compacted particle layer builds up at the solidification front with noticeable implications on the freezing process. In a directional solidification ex…
Interaction of multiple particles with a solidification front : from compacted particle layer to particle trapping
Brice Saint-Michel, Marc Georgelin, Sylvain Deville +1
The interaction of solidification fronts with objects such as particles, droplets, cells, or bubbles is a phenomenon with many natural and technological occurrences. For an object…
Simultaneous concentration and velocity maps in particle suspensions under shear from rheo-ultrasonic imaging
Brice Saint-Michel, Hugues Bodiguel, Steven Meeker +1
We extend a previously developed ultrafast ultrasonic technique [Gallot et al., Rev. Sci. Instrum. 84, 045107 (2013)] to concentration field measurements in non-Brownian particle s…
Predicting and assessing rupture in protein gels under oscillatory shear
Brice Saint-Michel, Thomas Gibaud, Sebastien Manneville
Soft materials may break irreversibly upon applying sufficiently large shear oscillations, a process which physical mechanism remains largely elusive. In this work, the rupture of…
Stochastic chaos in a turbulent swirling flow
Davide Faranda, Yuzuru Sato, Brice Saint-Michel +4
We report the experimental evidence of the existence of a random attractor in a fully developed turbulent swirling flow. By defining a global observable which tracks the asymmetry…
Local Oscillatory Rheology from Echography
Brice Saint-Michel, Thomas Gibaud, Mathieu Leocmach +1
Local Oscillatory Rheology from Echography (LORE) consists in a traditional rheology experiment synchronized with high-frequency ultrasonic imaging which gives access to the local…
A statistical mechanics framework for the large-scale structure of turbulent von K{á}rm{á}n flows
Simon Thalabard, Brice Saint-Michel, Éric Herbert +2
In the present paper, recent experimental results on large scale coherent steady states observed in experimental von K{á}rm{á}n flows are revisited from a statistical mechanics per…
Influence of Reynolds number and forcing type in a turbulent von Kármán flow
Brice Saint-Michel, Bérengère Dubrulle, Louis Marié +2
We present a detailed study of of a global bifurcation occuring in a turbulent von Kármán swirling flow. In this system, the statistically steady states progressively display hyste…
Modelling and analysis of turbulent datasets using ARMA processes
Davide Faranda, Flavio Maria Emanuele Pons, Bérèngere Dubrulle +4
We introduce a novel way to extract information from turbulent datasets by applying an ARMA statistical analysis. Such analysis goes well beyond the analysis of the mean flow and o…
Probing quantum and classical turbulence analogy through global bifurcations in a von Kármán liquid Helium experiment
B Saint-Michel, E Herbert, J Salort +15
We report measurements of the dissipation in the Superfluid Helium high REynold number von Karman flow (SHREK) experiment for different forcing conditions, through a regime of glob…
A zero-mode mechanism for spontaneous symmetry breaking in a turbulent von Kármán flow
Brice Saint-Michel, François Daviaud, Bérengère Dubrulle
We suggest that the dynamical spontaneous symmetry breaking reported in a turbulent swirling flow at by Cortet et al., Phys. Rev. Lett., 105, 214501 (2010) can be descr…
Forcing-dependent stability of steady states in a turbulent swirling flow
Brice Saint-Michel, Bérengère Dubrulle, Florent Ravelet +1
We study the influence of the forcing on the steady turbulent states of a von Kármán swirling flow, at constant impeller speed, or at constant torque. We find that the different fo…