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Hydrodynamics of self-propelled hard rod | Aparna Baskaran
; M. Cristina Marchetti
; | Date: |
17 Aug 2007 | Abstract: | 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 non-thermal 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. | Source: | arXiv, 0708.2401 | Services: | Forum | Review | PDF | Favorites |
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