Brownian dynamics of a self-propelled particle in shear flow.

Brownian dynamics of a self-propelled particle in linear shear flow is studied analytically by solving the Langevin equation and in simulation. The particle has a constant propagation speed along a fluctuating orientation and is additionally subjected to a constant torque. In two spatial dimensions, the mean trajectory and the mean square displacement (MSD) are calculated as functions of time t analytically. In general, the mean trajectories are cycloids that are modified by finite temperature effects. With regard to the MSD, different regimes are identified where the MSD scales with t(ν) with ν=0,1,2,3,4. In particular, an accelerated (ν=4) motion emerges if the particle is self-propelled along the gradient direction of the shear flow.

• Publication year

  2011

• Venue

  Physical review. E, Statistical, nonlinear, and soft matter physics

• Publication date

  2011-06-02

• Fields of study

  Medicine, Physics

• Identifiers
  DOI 10.1103/PhysRevE.84.031105arXiv 1106.0476PMID 22060326
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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