Collective oscillation in two-dimensional fluid

Autor:	Morita, Hidetoshi
Rok vydání:	2011
Předmět:	Physics - Fluid Dynamics Condensed Matter - Statistical Mechanics Nonlinear Sciences - Chaotic Dynamics
Druh dokumentu:	Working Paper
Popis:	Large-scale collective oscillation is discovered in the two-dimensional Euler equations. For initial conditions far from a base stationary flow, the system does not relax to the base stationary flow, but instead shows pairs of coherent vortices moving along the base stream line, which leads to large-scale oscillatory fields. The investigation of the vicinity of a bifurcation point suggests that this oscillation appears through Hopf bifurcation. Furthermore, a dynamic self-consistent theory explains that this oscillation results from the collective organization of a state of self-oscillation. Comment: 4 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1103.1140 Zobrazit plný text záznamu View this record from Arxiv