Literature DB >> 20867416

Run-and-tumble particles with hydrodynamics: sedimentation, trapping, and upstream swimming.

R W Nash1, R Adhikari, J Tailleur, M E Cates.   

Abstract

We simulate by lattice Boltzmann the nonequilibrium steady states of run-and-tumble particles (inspired by a minimal model of bacteria), interacting by far-field hydrodynamics, subject to confinement. Under gravity, hydrodynamic interactions barely perturb the steady state found without them, but for particles in a harmonic trap such a state is quite changed if the run length is larger than the confinement length: a self-assembled pump is formed. Particles likewise confined in a narrow channel show a generic upstream flux in Poiseuille flow: chiral swimming is not required.

Mesh：

Year:  2010        PMID： 20867416     DOI： 10.1103/PhysRevLett.104.258101

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  15 in total

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10.  Active Brownian particles and run-and-tumble particles separate inside a maze.

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