Simulations of cylindrical dynamos with an integral equation solver: Application to the VKS experiment


Simulations of cylindrical dynamos with an integral equation solver: Application to the VKS experiment

Xu, M.; Stefani, F.; Gerbeth, G.; Ravelet, F.; Chiffaudel, A.; Daviaud, F.; Leorat, J.

The von Karmann sodium (VKS) experiment in Cadarache, France, is intended to study the hydromagnetic dynamo effect in a highly turbulent flow. Up to present, no dynamo effect was measured in this facility, despite the fact that the sodium flow has been carefully optimized. We show that lid layers, i.e. layers of liquid sodium between the impellers and the end walls of the cylinder, and the flow therein are responsible for a dramatic increase of the critical magnetic Reynolds number for cylindrical dynamos of this kind. Possible solutions of this problem are discussed for the real dynamo facility.

  • Poster
    8th MHD-Days 2005, 28.-29.11.2005, Potsdam, Deutschland

Permalink: https://www.hzdr.de/publications/Publ-7860
Publ.-Id: 7860