Dynamics of the two-frequency torus breakdown in the driven double scroll circuit

M S Baptista, I L Caldas

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


In work we numerically identify three scenarios for the two-frequency torus breakdown to chaos, using the driven double scroll circuit, with varying driving parameters. Two of these scenarios follow the Curry-Yorke route to chaos. For one scenario, we identify the transition to chaos through the onset of a heteroclinic tangle and its heteroclinic points. In the other scenario, chaos appears via period-doubling bifurcations. The third scenario is through the type-II intermittency for which a quasiperiodic torus grows in size, breaks by touching external saddle points, and forms a heteroclinic saddle connection. These dynamic scenarios have distinct structure evolutions: for the Curry-Yorke route, chaos appears softly and alternates with phase locking, while, for the type-II intermittency, chaos appears abruptly and is pn:served for a large range of the varying driving parameter. [S1063-651X(98)05210-6].

Original languageEnglish
Pages (from-to)4413-4420
Number of pages8
JournalPhysical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Issue number4
Publication statusPublished - Oct 1998


  • quasi-periodicity
  • chaos
  • bifurcations
  • transition
  • turbulence
  • systems
  • onset


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