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Turbulence in the magnetostrophic regime

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DTS experiment was built to explore the magnetostrophic regime in which the Coriolis and Lorentz forces are comparable (see Brito et al, 2011). This regime consist in a rotating spherical couette flow submitted to a strong dipolar magnetic field. The mean flow generate a large part of the induced magnetic field through the omega-effect (Parker, 1955). The actual issue is to evaluate the fluid turbulent contribution to the large scale inducted magnetic field considering the  and beta-effect.

Author(s):

Simon Cabanes    
ISTerre-CNRS
France

Henri-Claude Nataf    
ISTerre-CNRS
France

Nathanael Schaeffer    
ISTerre-CNRS
France