• DOI:10.1140/EPJB/E2010-00078-5
• Corpus ID: 119246346

Kinematic dynamo simulations of von Kármán flows: application to the VKS experiment

@article{Pintr2010KinematicDS,
  title={Kinematic dynamo simulations of von K{\'a}rm{\'a}n flows: application to the VKS experiment},
  author={{\'A}kos Pint{\'e}r and B{\'e}reng{\`e}re Dubrulle and Franccois Daviaud},
  journal={The European Physical Journal B},
  year={2010},
  volume={74},
  pages={165-176}
}

• Á. Pintér, B. Dubrulle, F. Daviaud
• Published 2 March 2010
• Physics
• The European Physical Journal B

AbstractThe VKS experiment has evidenced dynamo action in a highly turbulent liquid sodium
von Kármán flow [R. Monchaux et al., Phys. Rev. Lett. 98, 044502 (2007)].
However, the existence and the onset of a dynamo happen to depend on the experimental configuration.
Performing kinematic dynamo simulations on real flows, we study the influence of the configuration
on dynamo action, namely the sense of rotation and the presence of an annulus in the shear layer plane.
The 3 components of the mean velocity fields are measured in a water prototype for different VKS configurations
through Stereoscopic Particle Imaging Velocimetry. Experimental data are then processed
in order to use them in a periodic cylindrical kinematic code.
Even if the kinematic predicted mode appears to be different from the experimental saturated one,
the results concerning the existence of a dynamo and the thresholds are in qualitative agreement,
showing the importance of the flow characteristics.