Results 21 to 30 of about 5,462,018 (286)
Brownian motion of a self-propelled particle [PDF]
Journal of Physics: Condensed Matter, 2011 Overdamped Brownian motion of a self-propelled particle is studied by solving the Langevin equation analytically. On top of translational and rotational diffusion, in the context of the presented model, the "active" particle is driven along its internal orientation axis.
Hagen, Borge ten +2 more
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Dynamics of a Self-Propelled Particle in a Harmonic Trap [PDF]
Physical Review Letters, 2019 The dynamics of an active walker in a harmonic potential is studied experimentally, numerically and theoretically. At odds with usual models of self-propelled particles, we identify two dynamical states for which the particle condensates at finite distance from the trap center.
Dauchot, Olivier, Démery, Vincent
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Anticipation Induces Polarized Collective Motion in Attraction Based Models
Northeast Journal of Complex Systems, 2021 Moving animal groups are prime examples of natural complex systems. In most models of such systems each individual updates its heading based on the current positions and headings of its neighbors.
Daniel Strömbom, Alice Antia
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Fluctuations and pattern formation in self-propelled particles [PDF]
Physical Review E, 2010 We consider a coarse-grained description of a system of self-propelled particles given by hydrodynamic equations for the density and polarization fields. We find that the ordered moving or flocking state of the system is unstable to spatial fluctuations beyond a threshold set by the self-propulsion velocity of the individual units.
Mishra, Shradha +2 more
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Escape problem for active particles confined to a disk
Physical Review Research, 2020 We study the escape problem for interacting, self-propelled particles confined to a disk, where particles can exit through one open slot on the circumference.
Kristian Stølevik Olsen +2 more
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A Review on the Some Issues of Multiphase Flow with Self-Driven Particles
Applied Sciences, 2021 Multiphase flow with self-driven particles is ubiquitous and complex. Exploring the flow properties has both important academic meaning and engineering value.
Chen Liu, Jianzhong Lin
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Crystallization in a Dense Suspension of Self-Propelled Particles [PDF]
Physical Review Letters, 2012 Using Brownian dynamics computer simulations we show that a two-dimensional suspension of self-propelled ("active") colloidal particles crystallizes at sufficiently high densities. Compared to the equilibrium freezing of passive particles the freezing density is both significantly shifted and depends on the structural or dynamical criterion employed ...
Bialké, Julian +2 more
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Density-independent model of self-propelled particles [PDF]
Physical Review E, 2013 We examine a density-independent modification of the Vicsek model in which a particle interacts with neighbors defined by Delaunay triangulation. To feasibly simulate the model, an algorithm for repairing the triangulation over time was developed. This algorithm may also be applied to any time-varying two-dimensional Delaunay triangulation.
Schubring, Daniel, Ohmann, Paul R.
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, 2023 Electrohydrodynamic atomization (EHDA) provides unparalleled control over the size and production rate of particles from solution. However, conventional methods produce highly charged particles that are not appropriate for inhalation drug delivery.
Nguyen, Hong-Quan +13 more
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Liquid Metal Slingshot-a Self-Propelled and Controllable Motion [PDF]
, 2020 This manuscript reports a new self-propelled motion of liquid metal droplet, which not rely on any external force, and we can change the speed and direction by changing the shape of the surface.
Xiaomin, Wu +5 more
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