Hydrodynamics of self-propelled hard rods.

Motivated by recent simulations and by experiments on aggregation of gliding bacteria, we study a model of the collective dynamics of self-propelled hard rods on a substrate in two dimensions. The rods have finite size, interact via excluded volume, and their dynamics is overdamped by the interaction with the substrate. Starting from a microscopic model with nonthermal noise sources, a continuum description of the system is derived. The hydrodynamic equations are then used to characterize the possible steady states of the systems and their stability as a function of the particles packing fraction and the speed of self-propulsion.

• Publication year

  2007

• Venue

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

• Publication date

  2007-08-17

• Fields of study

  Medicine, Physics

• Identifiers
  DOI 10.1103/PhysRevE.77.011920arXiv 0708.2401PMID 18351889
• 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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