Edge of chaos and genesis of turbulence

Autor(es)

Chian, Abraham C-L. ^{[1, 2, 3, 4]} ; Munoz, Pablo R. ^{[1, 2, 4]} ; Rempel, Erico L. ^{[1, 2, 4]}

Afiliação do(s) autor(es)

^[1] Natl Inst Space Res INPE, BR-12227010 Sao Jose Dos Campos, SP - Brazil

^[2] WISER, BR-12227010 Sao Jose Dos Campos, SP - Brazil

^[3] Observ Paris, CNRS, LESIA, F-92195 Meudon - France

^[4] CTA ITA IEFM, Inst Aeronaut Technol ITA, BR-12228900 Sao Jose Dos Campos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Physical Review E; v. 88, n. 5 NOV 18 2013.
• Citações Web of Science: 5

Resumo

The edge of chaos is analyzed in a spatially extended system, modeled by the regularized long-wave equation, prior to the transition to permanent spatiotemporal chaos. In the presence of coexisting attractors, a chaotic saddle is born at the basin boundary due to a smooth-fractal metamorphosis. As a control parameter is varied, the chaotic transient evolves to well-developed transient turbulence via a cascade of fractal-fractal metamorphoses. The edge state responsible for the edge of chaos and the genesis of turbulence is an unstable traveling wave in the laboratory frame, corresponding to a saddle point lying at the basin boundary in the Fourier space. (AU)

• Processo FAPESP: 11/10466-1 - Turbulência e estruturas coerentes em plasmas astrofísicos
• Beneficiário: Pablo Rubén Muñoz Gutberlet
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado