CGL Defect Chaos and Bursts in Hexagonal Rotating non-Boussinesq Convection

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dc.creatorMadruga, Santiago
dc.creatorRiecke, Hermann
dc.creatorPesch, Werner
dc.date2005-07-26
dc.date.accessioned2026-07-07T05:36:36Z
dc.date.available2026-07-07T05:36:36Z
dc.descriptionWe employ numerical computations of the full Navier-Stokes equations to investigate non-Boussinesq convection in a rotating system using water as a working fluid. We identify two regimes. For weak non-Boussinesq effects the Hopf bifurcation from steady to oscillating (whirling) hexagons is supercritical and typical states exhibit defect chaos that is systematically described by the cubic complex Ginzburg-Landau equation. For stronger non-Boussinesq effects the Hopf bifurcation becomes subcritical and the oscillations exhibit localized chaotic bursting, which can be modeled by a quintic complex Ginzburg-Landau equation.
dc.descriptionSubmitted to Physical Review Letters
dc.identifierhttps://arxiv.org/abs/nlin/0507059
dc.identifierhttp://arxiv.org/abs/nlin/0507059
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/81044
dc.subjectPattern Formation and Solitons
dc.subjectChaotic Dynamics
dc.titleCGL Defect Chaos and Bursts in Hexagonal Rotating non-Boussinesq Convection
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