Revisiting the ABC flow dynamo

  title={Revisiting the ABC flow dynamo},
  author={Ismael Bouya and Emmanuel Dormy},
  journal={Physics of Fluids},
The Arnol'd–Beltrami–Childress flow is a prototype for fast dynamo action, essential to the origin of magnetic field in large astrophysical objects. Probably the most studied configuration is the classical 1 : 1 : 1 flow. We investigate its dynamo properties varying the magnetic Reynolds number Rm. We identify two kinks in the growth rate, which correspond, respectively, to an eigenvalue crossing and to an eigenvalue coalescence. The dominant eigenvalue becomes purely real for a finite value of… 

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