A Lattice-Boltzmann model for suspensions of self-propelling colloidal particles

Abstract

We present a Lattice-Boltzmann method for simulating self-propelling (active) colloidal particles in two-dimensions. Active particles with symmetric and asymmetric force distribution on its surface are considered. The velocity field generated by a single active particle, changing its orientation randomly, and the different time scales involved are characterized in detail. The steady state speed distribution in the fluid, resulting from the activity, is shown to deviate considerably from the equilibrium distribution.

8 pages, 13 figures

References in corpus (8)

• Novel type of phase transition in a system of self-driven particles
• Numerical Simulations of Particulate Suspensions via a Discretized Boltzmann Equation Part I. Theoretical Foundation
• Flocks, herds, and schools: A quantitative theory of flocking
• Hydrodynamic fluctuations and instabilities in ordered suspensions of self-propelled particles
• Rheology of Active-Particle Suspensions
• Velocity Tails for Inelastic Maxwell Models
• Self-organized Pattern Formation in Motor-Microtubule Mixtures
• Simulating Colloid Hydrodynamics with Lattice Boltzmann

Cited by in corpus (18)

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• Emergent behavior in active colloids
• Steady-state hydrodynamic instabilities of active liquid crystals: Hybrid lattice Boltzmann simulations
• Aggregation of self-propelled colloidal rods near confining walls
• Shearing active gels close to the isotropic-nematic transition
• Spontaneous aggregation and global polar ordering in squirmer suspensions
• Nonlinear dynamics and rheology of active fluids: simulations in two dimensions
• Lattice Boltzmann Methods and Active Fluids
• Dynamic regimes of hydrodynamically coupled self-propelling particles
• Can the self-propulsion of anisotropic microswimmers be described by using forces and torques?
• A Drop of Active Matter
• Morphology of clusters of attractive dry and wet self-propelled spherical particle suspensions
• Instabilities and waves in thin films of living fluids
• The collective dynamics of self-propelled particles
• Mesoscale Structures at Complex Fluid-Fluid Interfaces: a Novel Lattice Boltzmann / Molecular Dynamics Coupling
• Many-body microhydrodynamics of colloidal particles with active boundary layers
• Simulating active agents under confinement with Dissipative Particles (hydro)Dynamics
• Uncovering novel phase transitions in dense dry polar active fluids using a lattice Boltzmann method