Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

1 Publication
Implications of a non-uniform permeability distribution on the generation of magnetic fields in the Von-K\'arm\'an-Sodium dynamo experiment.
Giesecke, A.;
Numerical simulations of the kinematic induction equation have been carried out in a setup that resembles the configuration of the VKS dynamo experiment. Primary objective are investigations of the impact of the non-uniform permeability distribution introduced by the ferrous impellers that drive a flow of liquid sodium in the experiment. It is shown that a high-permeability domain favours the axisymetric field mode whereas the first non-axisymmetric mode remains nearly unaffected. However, to circumvent the restrictions of Cowling's theorem, still an alpha-effect is required to explain the axisymmetric field as it is observed in the experiment.
Keywords: VKS Dynamo Induction MHD
  • Invited lecture (Conferences)
    Seminar am Laboratoire d'Informatique pour la Mécanique et les Sciences de l'Ingénieur (LIMSI), 05.05.2009, Paris, Frankreich

Publ.-Id: 12682 - Permalink