Horizontal thermal convection in a shallow cavity: oscillatory regimes and transition to chaos (Articolo in rivista)

Type
Label
  • Horizontal thermal convection in a shallow cavity: oscillatory regimes and transition to chaos (Articolo in rivista) (literal)
Anno
  • 2000-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1108/09615530010312338 (literal)
Alternative label
  • Bucchignani, E; Mansutti, D (2000)
    Horizontal thermal convection in a shallow cavity: oscillatory regimes and transition to chaos
    in International journal of numerical methods for heat & fluid flow
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bucchignani, E; Mansutti, D (literal)
Pagina inizio
  • 179 (literal)
Pagina fine
  • 195 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 10 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 17 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 2-3 (literal)
Note
  • Scopus (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Ctr Italiano Ric Aerospaziali; Consiglio Nazionale delle Ricerche (CNR) (literal)
Titolo
  • Horizontal thermal convection in a shallow cavity: oscillatory regimes and transition to chaos (literal)
Abstract
  • We develop a numerical analysis of the buoyancy driven natural convection of a fluid in a three dimensional shallow cavity (4.1.1) with a horizontal gradient of temperature along the larger dimension. The fluid is a liquid metal (Prandtl number equal to 0.015) while the Grashof number (Gr) varies in the range 100,000-300,000. The Navier-Stokes equations in vorticity-velocity formulation have been integrated by means of a linearized fully implicit scheme. The evaluation of fractal dimension of the attractors in the phase space has allowed the detection of the chaotic regime. The Ruelle-Takens bifurcation sequence has been observed as mechanism for the transition to chaos: the quasi periodic regime with three incommensurate frequencies is the instability mechanism responsible for the transition to chaos. Physical experiments confirm the existence of this scenario. (literal)
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