@Article{ChimanskiRempCher:2016:OnInSp,
author = "Chimanski, Emanuel V. and Rempel, Erico Luiz and Chertovskih,
Roman",
affiliation = "{Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Tecnol{\'o}gico de Aeron{\'a}utica (ITA)}",
title = "On-off intermittency and spatiotemporal chaos in three-dimensional
Rayleigh-B{\'e}nard convection",
journal = "Advances in Space Research",
year = "2016",
volume = "57",
number = "6",
pages = "1440--1447",
month = "Mar.",
keywords = "Hyperchaos, Rayleigh-B{\'e}nard convection, Spatiotemporal
chaos.",
abstract = "Convective instabilities of viscous conducting fluids play an
important role in many physical phenomena in planets and stars.
Astrophysical magnetic fields are usually explained in a framework
of the dynamo theory, describing transformation of the kinetic
energy of a flow into magnetic energy. Therefore, an analysis of
purely convective states and their bifurcations, as a control
parameter is changed, provides a detailed framework for the
subsequent study of magnetic field generation by these states. In
this paper, three-dimensional Rayleigh-B{\'e}nard convection in
the absence of magnetic field is investigated numerically for
various values of the Rayleigh number and a fixed Prandtl number
(corresponding to its value for convection in the Earth's outer
core). On increasing the Rayleigh number, we identified periodic,
quasiperiodic, chaotic and hyperchaotic attractors of the
convective system and their bifurcations, thereby describing a
route to spatiotemporal chaos in the convective system. The
occurrence of on-off intermittency in the energy time series is
discussed.",
doi = "10.1016/j.asr.2015.11.014",
url = "http://dx.doi.org/10.1016/j.asr.2015.11.014",
issn = "0273-1177 and 1879-1948",
language = "en",
targetfile = "chimanski_on off.pdf",
urlaccessdate = "27 abr. 2024"
}