Sunday, May 19, 2013

1305.3206 (Julien Cividini et al.)

Localization in the wake of a particle crossing a perpendicular flow    [PDF]

Julien Cividini, Cecile Appert-Rolland
Diagonal or chevron patterns are known to spontaneously emerge at the intersection of two perpendicular flows of self-propelled particles, e.g. pedestrians. The instability responsible for this pattern formation has been studied in previous work in the context of a mean-field approach. Here we investigate the microscopic mechanism yielding to this pattern. We present a lattice model study of the wake created by a particle crossing a perpendicular flow and show how this wake can localize other particles traveling in the same direction.
View original: http://arxiv.org/abs/1305.3206

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