Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Delmotte, Blaise"'
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 particles. Here we present a scalable and versatile framework to mode
Externí odkaz:
http://arxiv.org/abs/2403.05337
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 contact with obstacles can lead to complex dynamics. In this work, we comb
Externí odkaz:
http://arxiv.org/abs/2311.17635
Autor:
Delmotte, Blaise
Publikováno v:
Physical Review Fluids, 8(6), L062302 (2023)
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 interface controls the speed and direction of the particles, their relativ
Externí odkaz:
http://arxiv.org/abs/2302.00073
Autor:
Delmotte, Blaise
We have all witnessed the flocking of starlings in the sky and the schools of fish that form in the ocean. This kind of organization of living creatures is not limited to those that we see, but also occurs for those that we don’t : swimming microor
Externí odkaz:
http://oatao.univ-toulouse.fr/14354/1/delmotte_partie_1_sur_2_2.pdf
http://oatao.univ-toulouse.fr/14354/2/delmotte_partie_2_sur_2_2.pdf
http://oatao.univ-toulouse.fr/14354/2/delmotte_partie_2_sur_2_2.pdf
The motion of flexible fibers through structured fluidic environments is ubiquitous in nature and industrial applications. Most often, their dynamics results from the complex interplay between internal elastic stresses, contact forces and hydrodynami
Externí odkaz:
http://arxiv.org/abs/2209.10692
Autor:
van der Wee, Ernest B., Blackwell, Brendan C., Usabiaga, Florencio Balboa, Sokolov, Andrey V., Katz, Isaiah T., Delmotte, Blaise, Driscoll, Michelle M.
Publikováno v:
Sci. Adv. 9, eade0320(2023)
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 needed to escape the trap. Here, we use experiments and simulations to
Externí odkaz:
http://arxiv.org/abs/2204.04995
Publikováno v:
Journal of Computational Physics, 464, 111365 (2022)
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 definition encompasses a wide variety of situations in the microscopi
Externí odkaz:
http://arxiv.org/abs/2107.10800
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, random displacements and Brownian drift at minimal cost. Capturing B
Externí odkaz:
http://arxiv.org/abs/2106.00449
Publikováno v:
J. Fluid Mech., 2021, 919, A22
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 chemical gradients that modify the trajectories of other particles. As a r
Externí odkaz:
http://arxiv.org/abs/2104.12396
Autor:
Sprinkle, Brennan, Wilken, Sam, Karapetyan, Shake, Tanaka, Michio, Chen, Zhe, Cruise, Joseph R., Delmotte, Blaise, Driscoll, Michelle M., Chaikin, Paul, Donev, Aleksandar
Publikováno v:
Phys. Rev. Fluids 6, 034202 (2021)
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 around each colloid, and the hydrodynamic interactions among the colloid
Externí odkaz:
http://arxiv.org/abs/2011.14472