Route to hyperchaos in Rayleigh-Benard convection

Autor(es)

Chertovskih, R. ^[1] ; Chimanski, E. V. ^[1] ; Rempel, E. L. ^{[2, 1, 3]}

Afiliação do(s) autor(es)

^[1] Aeronaut Inst Technol, BR-12228900 Sao Jose Dos Campos, SP - Brazil

^[2] Natl Inst Space Res, BR-12227010 Sao Jose Dos Campos, SP - Brazil

^[3] World Inst Space Environm Res, BR-12227010 Sao Jose Dos Campos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: EPL; v. 112, n. 1 OCT 2015.
• Citações Web of Science: 3

Resumo

Transition to hyperchaotic regimes in Rayleigh-Benard convection in a square periodicity cell is studied by three-dimensional numerical simulations. By fixing the Prandtl number at P = 0.3 and varying the Rayleigh number as a control parameter, a bifurcation diagram is constructed where a route to hyperchaos involving quasiperiodic regimes with two and three incommensurate frequencies, multistability, chaotic intermittent attractors and a sequence of boundary and interior crises is shown. The three largest Lyapunov exponents exhibit a linear scaling with the Rayleigh number and are positive in the final hyperchaotic attractor. Thus, a route to weak turbulence is found. Copyright (C) EPLA, 2015 (AU)

• Processo FAPESP: 13/22314-7 - Campos magnéticos e dínamos em plasmas espaciais e astrofísicos II
• Beneficiário: Erico Luiz Rempel
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/01242-8 - Geração de campos magnéticos de grandes escalas por convecção de Rayleigh-Bénard
• Beneficiário: Roman Chertovskikh
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado