242 citations · 644 across the 22 of their papers we have counts for
25 papers
Orientation Dynamics of Rigid Fibers in a Microfluidic Burgers-like Vortex
Marine Aulnette, Mathis Coutadeur, Clément Bielinski +2
Fiber suspensions are common in biological and environmental flows and are widely used in industrial applications. Fiber transport and orientation dynamics are affected by interact…
Moving backward to go faster: Diatom-inspired sliding reveals efficient modes of locomotion
Julien le Dreff, Blaise Delmotte
Across biological scales, from sperm cells to whales, locomotion commonly relies on undulatory gaits, in which traveling deformation waves interact with the surrounding fluid to ge…
A microfluidic band-pass filter for flexible fiber separation
Li Zhibo, Bielinski Clément, Lindner Anke +2
The control of particle trajectories in structured microfluidic environments has significantly advanced sorting technologies, most notably through deterministic lateral displacemen…
Transport of spherical microparticles in a 3D vortex flow
Marine Aulnette, Noa Burshtein, Arash Alizad Banaei +5
Particles are common in biological and environmental flows and are widely used in industrial and pharmaceutical applications. Their motion and flow dynamics are strongly affected b…
Modeling complex particle suspensions: perspectives on the rigid multiblob method
Blaise Delmotte, Florencio Balboa Usabiaga
Many suspensions contain particles with complex shapes that are affected not only by hydrodynamics, but also by thermal fluctuations, internal kinematic constraints and other long-…
A scalable method to model large suspensions of colloidal phoretic particles with arbitrary shapes
Blaise Delmotte, Florencio Balboa Usabiaga
Phoretic colloids self-propel thanks to surface flows generated in response to surface gradients (thermal, electrical, or chemical), that are self-induced and/or generated by other…
Dynamics of rigid fibers interacting with triangular obstacles in microchannel flows
Zhibo Li, Clément Bielinski, Anke Lindner +2
Fiber suspensions flowing in structured media are encountered in many biological and industrial systems. Interactions between fibers and the transporting flow as well as fiber cont…
Viscosity ratio across interfaces controls the stability and self-assembly of microrollers
Blaise Delmotte
We investigate the individual and collective dynamics of torque-driven particles, called microrollers, near fluid-fluid interfaces. We find that the viscosity ratio across the inte…
Obstacle-induced lateral dispersion and nontrivial trapping of flexible fibers settling in a viscous fluid
Ursy Makanga, Mohammadreza Sepahi, Camille Duprat +1
The motion of flexible fibers through structured fluidic environments is ubiquitous in nature and industrial applications. Most often, their dynamics results from the complex inter…
A simple catch: thermal fluctuations enable hydrodynamic trapping of microrollers by obstacles
Ernest B. van der Wee, Brendan C. Blackwell, Florencio Balboa Usabiaga +4
It is known that obstacles can hydrodynamically trap bacteria and synthetic microswimmers in orbits, where the trapping time heavily depends on the swimmer flow field and noise is…
A numerical method for suspensions of articulated bodies in viscous flows
Florencio Balboa Usabiaga, Blaise Delmotte
An articulated body is defined as a finite number of rigid bodies connected by a set of arbitrary constraints that limit the relative motion between pairs of bodies. Such a general…
A generalised drift-correcting time integration scheme for Brownian suspensions of rigid particles with arbitrary shape
Timothy A Westwood, Blaise Delmotte, Eric E Keaveny
The efficient computation of the overdamped, random motion of micron and nanometre scale particles in a viscous fluid requires novel methods to obtain the hydrodynamic interactions…
Hydrochemical interactions of phoretic particles: a regularized multipole framework
Francisco Rojas-Perez, Blaise Delmotte, Sebastien Michelin
Chemically-active colloids modify the concentration of chemical solutes surrounding them in order to self-propel. In doing so, they generate long-ranged hydrodynamic flows and chem…
Sedimentation of a Colloidal Monolayer Down an Inclined Plane
Brennan Sprinkle, Sam Wilken, Shake Karapetyan +7
We study the driven collective dynamics of a colloidal monolayer sedimentating down an inclined plane. The action of the gravity force parallel to the bottom wall creates a flow ar…
Hydrodynamically-bound states of a pair of microrollers: a dynamical system insight
Blaise Delmotte
Recent work has identified persistent cluster states which were shown to be assembled and held together by hydrodynamic interactions alone [Driscoll \textit{et al.} (2017) Nature P…
Leveraging Collective Effects in Externally Driven Colloidal Suspensions: Experiments and Simulations
Michelle Driscoll, Blaise Delmotte
In this review article, we focus on collective motion in externally driven colloidal suspensions, as well as how these collective effects can be harnessed for use in microfluidic a…
Simulations of Brownian tracer transport in squirmer suspensions
Blaise Delmotte, Eric E Keaveny, Eric Climent +1
In addition to enabling movement towards environments with favourable living conditions, swimming by microorganisms has also been linked to enhanced mixing and improved nutrient up…
A minimal model for a hydrodynamic fingering instability in microroller suspensions
Blaise Delmotte, Michelle Driscoll, Aleksandar Donev +1
We derive a minimal continuum model to investigate the hydrodynamic mechanism behind the fingering instability recently discovered in a suspension of microrollers near a floor [Dri…
Hydrodynamic shocks in microroller suspensions
Blaise Delmotte, Michelle Driscoll, Paul Chaikin +1
We combine experiments, large scale simulations and continuum models to study the emergence of coherent structures in a suspension of magnetically driven microrollers sedimented ne…
Brownian Dynamics of Confined Suspensions of Active Microrollers
Florencio Balboa Usabiaga, Blaise Delmotte, Aleksandar Donev
We develop efficient numerical methods for performing many-body Brownian dynamics simulations of a recently-observed fingering instability in an active suspension of colloidal roll…
Unstable fronts and stable "critters" formed by microrollers
Michelle Driscoll, Blaise Delmotte, Mena Youssef +3
Condensation of objects into stable clusters occurs naturally in equilibrium and driven systems. It is commonly held that potential interactions, depletion forces, or sensing are t…
Hydrodynamics of Suspensions of Passive and Active Rigid Particles: A Rigid Multiblob Approach
F. Balboa Usabiaga, B. Kallemov, B. Delmotte +3
We develop a rigid multiblob method for numerically solving the mobility problem for suspensions of passive and active rigid particles of complex shape in Stokes flow in unconfined…
Simulating Brownian suspensions with fluctuating hydrodynamics
Blaise Delmotte, Eric E Keaveny
Fluctuating hydrodynamics has been successfully combined with several computational methods to rapidly compute the correlated random velocities of Brownian particles. In the overda…
A general formulation of Bead Models applied to flexible fibers and active filaments at low Reynolds number
Blaise Delmotte, Eric Climent, Franck Plouraboue
This contribution provides a general framework to use Lagrange multipliers for the simulation of low Reynolds number fiber dynamics based on Bead Models (BM). This formalism provid…