Dynamo Enhancement and Mode Selection Triggered by High Magnetic Permeability.

@article{Kreuzahler2017DynamoEA,
  title={Dynamo Enhancement and Mode Selection Triggered by High Magnetic Permeability.},
  author={S. Kreuzahler and Yannick Ponty and Nicolas Plihon and Holger Homann and Rainer Grauer},
  journal={Physical review letters},
  year={2017},
  volume={119 23},
  pages={
          234501
        }
}
We present results from consistent dynamo simulations, where the electrically conducting and incompressible flow inside a cylinder vessel is forced by moving impellers numerically implemented by a penalization method. The numerical scheme models jumps of magnetic permeability for the solid impellers, resembling various configurations tested experimentally in the von Kármán sodium experiment. The most striking experimental observations are reproduced in our set of simulations. In particular, we… 

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