Artículos de revistas
Finite-size particles, advection, and chaos: A collective phenomenon of intermittent bursting
Fecha
2008Registro en:
PHYSICAL REVIEW E, v.78, n.5, 2008
1539-3755
10.1103/PhysRevE.78.056206
Autor
Torricos, Rene Orlando Medrano
Moura, Alessandro
Tel, Tamas
Caldas, Ibere Luiz
Grebogi, Celso
Institución
Resumen
We consider finite-size particles colliding elastically, advected by a chaotic flow. The collisionless dynamics has a quasiperiodic attractor and particles are advected towards this attractor. We show in this work that the collisions have dramatic effects in the system's dynamics, giving rise to collective phenomena not found in the one-particle dynamics. In particular, the collisions induce a kind of instability, in which particles abruptly spread out from the vicinity of the attractor, reaching the neighborhood of a coexisting chaotic saddle, in an autoexcitable regime. This saddle, not present in the dynamics of a single particle, emerges due to the collective particle interaction. We argue that this phenomenon is general for advected, interacting particles in chaotic flows.