6533b83afe1ef96bd12a7935
RESEARCH PRODUCT
Flow properties and hydrodynamic interactions of rigid spherical microswimmers.
Tapan Chandra AdhyapakSara Jabbari-faroujisubject
Collective behaviorStokesian dynamicsMovementFOS: Physical sciencesCondensed Matter - Soft Condensed MatterBacterial Physiological Phenomena01 natural sciencesQuantitative Biology::OtherModels Biological010305 fluids & plasmasQuantitative Biology::Cell Behavior0103 physical sciencesComputer SimulationPhysics - Biological Physics010306 general physicsSuspension (vehicle)Plant Physiological PhenomenaPhysicsPhysics::Biological PhysicsFluid Dynamics (physics.flu-dyn)EukaryotaPhysics - Fluid DynamicsFirst orderFlow fieldDipoleClassical mechanicsBiological Physics (physics.bio-ph)HydrodynamicsSoft Condensed Matter (cond-mat.soft)Flow propertiesdescription
We analyze a minimal model for a rigid spherical microswimmer and explore the consequences of its extended surface on the interplay between its self-propulsion and flow properties. The model is the first order representation of microswimmers, such as bacteria and algae, with rigid bodies and flexible propelling appendages. The flow field of such a microswimmer at finite distances significantly differs from that of a point-force (Stokeslet) dipole. For a suspension of microswimmers, we derive the grand mobility matrix that connects the motion of an individual swimmer to the active and passive forces and torques acting on all the swimmers. Our investigation of the mobility tensors reveals that hydrodynamic interactions among rigid-bodied microswimmers differ considerably from those among the corresponding point-force dipoles. Our results are relevant for the study of collective behavior of hydrodynamically interacting microswimmers by means of Stokesian dynamics simulations at moderate concentrations.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-06-08 | Physical review. E |