Results 61 to 70 of about 30,999 (157)

Kolmogorovian Active Turbulence of a Sparse Assembly of Interacting Marangoni Surfers

open access: yesPhysical Review X, 2020
Active matter, composed of self-propelled entities, forms a wide class of out-of-equilibrium systems that display striking collective behaviors, among which, the so-called active turbulence where spatially and time-disordered flow patterns spontaneously ...
Mickael Bourgoin   +5 more
doaj   +1 more source

Simulating the Hydrodynamics of Self-Propelled Colloidal Clusters using Stokesian Dynamics [PDF]

open access: yes, 2016
Self-propelled clusters are involved in many technological applications such as in material science and biotechnology, and understanding their interaction with the fluid that surrounds them is of a great importance.
Crapper, Martin, El Hasadi, Yousef
core   +1 more source

Rectification of self-propelled particles by symmetric barriers [PDF]

open access: yesPhysical Review E, 2013
The motion of self-propelled particles can be rectified by asymmetric or ratchet-like periodic patterns in space. Here we show that a non-zero average drift can already be induced in a periodic potential with symmetric barriers when the self-propulsion velocity is also symmetric and periodically modulated but phase-shifted against the potential. In the
Pototsky, A., Hahn, A. M., Stark, H.
openaire   +5 more sources

Epidemic processes on self-propelled particles: Continuum and agent-based modeling

open access: yesPhysical Review Research, 2022
Most spreading processes require spatial proximity between agents. The stationary state of spreading dynamics in a population of mobile agents thus depends on the interplay between the time and length scales involved in the epidemic process and their ...
Jorge P. Rodríguez   +3 more
doaj   +1 more source

Mathematical models of self-propelled particles

open access: yesMathematical Models and Methods in Applied Sciences, 2017
This paper presents the papers published in two special issues devoted to the modeling of large systems of self-propelled particles. The contents of these papers are presented in the general framework of the conceptual analytic difficulties and of the computational problems that are met when dealing with this class of systems.
N Bellomo, F Brezzi
openaire   +3 more sources

Janus Particles in Acoustofluidic Setup: The Interplay between Self-Propulsion and Acoustic Trapping

open access: yesMicro
Acoustic focusing of particle flow in microfluidics has been shown to be an efficient tool for particle separation for various chemical and biomedical applications.
Lisa Marie Benko   +5 more
doaj   +1 more source

Shape-programmed 3D printed swimming microtori for the transport of passive and active agents

open access: yesNature Communications, 2019
While there are many demonstrations of self-propelled synthetic particles, there are fewer realisations of multimode swimming for the same particle. Here the authors demonstrate two swimming behaviours in magnetically manipulated microtori and show that ...
Remmi Danae Baker   +6 more
doaj   +1 more source

Boltzmann and hydrodynamic description for self-propelled particles

open access: yes, 2006
We study analytically the emergence of spontaneous collective motion within large bidimensional groups of self-propelled particles with noisy local interactions, a schematic model for assemblies of biological organisms.
Eric Bertin   +4 more
core   +4 more sources

Guided accumulation of active particles by topological design of a second-order skin effect

open access: yesNature Communications, 2021
Sustainable strategies for shepherding active particles are at the heart of many prospective applications. Here, Palacios et al. use the emerging topological properties of a microfluidic maze array to passively guide self-propelled colloids from the ...
Lucas S. Palacios   +5 more
doaj   +1 more source

Active colloidal chains with cilia- and flagella-like motion

open access: yesNew Journal of Physics, 2018
It has been shown that self-assembled chains of active colloidal particles can present sustained oscillations. These oscillations are possible because the effective diffusiophoretic forces that mediate the interactions of colloids do not respect the ...
S Gonzalez, R Soto
doaj   +1 more source

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