Modeling a spheroidal microswimmer and cooperative swimming in thin films

Abstract

We propose a hydrodynamic model for a spheroidal microswimmer with two tangential surface velocity modes. This model is analytically solvable and reduces to Lighthill's and Blake's spherical squirmer model in the limit of equal major and minor semi-axes. Furthermore, we present an implementation of such a spheroidal squirmer by means of multiparticle collision dynamics simulations. We investigate its properties as well as the scattering of two spheroidal squirmers in a slit geometry. Thereby we find a stable fixed point, where two pullers swim cooperatively forming a wedge-like conformation with a small constant angle.

References in corpus (18)

• The hydrodynamics of swimming microorganisms
• Self-motile colloidal particles: from directed propulsion to random walk
• Physics of Microswimmers - Single Particle Motion and Collective Behavior
• Meso-scale turbulence in living fluids
• Hydrodynamic attraction of swimming microorganisms by surfaces
• Hydrodynamics of self-propulsion near a boundary: predictions and accuracy of far-field approximations
• Non-equilibrium clustering of self-propelled rods
• Swarm behavior of self-propelled rods and swimming flagella
• Self-Propelled Rods near Surfaces
• Particle-Based Mesoscale Hydrodynamic Techniques
• Transport coefficients of off-lattice mesoscale-hydrodynamics simulation techniques
• Orientational order in concentrated suspensions of spherical microswimmers
• Spontaneous aggregation and global polar ordering in squirmer suspensions
• A frictionless microswimmer
• Dynamic correlations in stochastic rotation dynamics
• Thermostat for non-equilibrium multiparticle collision dynamics simulations
• Understanding the Onset of Oscillatory Swimming in Microchannels
• Flow Generation by Rotating Colloids in Planar Microchannels

Cited by in corpus (42)

• Computational models for active matter
• The physics of active polymers and filaments
• Clustering of microswimmers: Interplay of shape and hydrodynamics
• An active approach to colloidal self-assembly
• A particle-field representation unifies paradigms in active matter
• Active turbulence in microswimmer suspensions -- the role of active hydrodynamic stress and volume exclusion
• Enhanced rotational motion of spherical squirmer in polymer solutions
• Active Brownian filaments with hydrodynamic interactions: conformations and dynamics
• Simulating squirmers with multiparticle collision dynamics
• A Lattice Boltzmann Model for Squirmers
• Particle-resolved lattice Boltzmann simulations of 3-dimensional active turbulence
• Axisymmetric spheroidal squirmers and self-diffusiophoretic particles
• Frequency-dependent higher-order Stokes singularities near a planar elastic boundary: implications for the hydrodynamics of an active microswimmer near an elastic interface
• Noisy Pursuit and Pattern Formation of Self-Steering Active Particles
• Steady state sedimentation of ultrasoft colloids
• Beating of grafted chains induced by active Brownian particles
• Multi-Ciliated Microswimmers -- Metachronal Coordination and Helical Swimming
• Active spheroids in viscosity gradients
• Methods and measures for investigating microscale motility
• Hydrodynamic pursuit by cognitive self-steering microswimmers
• Simulation of microswimmer hydrodynamics with multiparticle collision dynamics
• Biopolymer dynamics driven by helical flagella
• Simulating active agents under confinement with Dissipative Particles (hydro)Dynamics
• Optimal Ciliary Locomotion of Axisymmetric Microswimmers
• Self-diffusiophoretic propulsion of a spheroidal particle in a shear-thinning fluid
• Simulating wet active polymers by multiparticle collision dynamics
• Alignment-Induced Self-Organization of Autonomously Steering Microswimmers: Turbulence, Vortices, and Jets
• Collective behavior of squirmers in thin films
• Near and far-field hydrodynamic interaction of two chiral squirmers
• Chiral active systems near a substrate: Emergent damping length controlled by fluid friction
• Hydrodynamics of Immiscible Binary Fluids with Viscosity Contrast: A multiparticle collision dynamics approach
• Stability of interlocked self-propelled dumbbell clusters
• Simulating dynamics of ellipsoidal particles using lattice Boltzmann method
• Motion of microswimmers in cylindrical microchannels
• Swimming efficiency in viscosity gradients
• HTMPC: A heavily templated C++ library for large scale particle-based mesoscale hydrodynamics simulations using multiparticle collision dynamics
• Effective squirmer models for self-phoretic chemically active spherical colloids
• Modeling hydrodynamic interactions in soft materials with multiparticle collision dynamics
• Optimal dynamics of a spherical squirmer in Eulerian description
• Trypanosoma brucei moving in microchannels and through constrictions
• Interface crossing behavior of prolate microswimmers: thermo and hydrodynamics
• Microswimming in viscoelastic fluids